*: use "can't" instead of "cannot"

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
diff --git a/networking/ether-wake.c b/networking/ether-wake.c
index 59f4053..e05db7a 100644
--- a/networking/ether-wake.c
+++ b/networking/ether-wake.c
@@ -167,7 +167,7 @@
 		byte_cnt = sscanf(ethoptarg, "%u.%u.%u.%u",
 		                  &passwd[0], &passwd[1], &passwd[2], &passwd[3]);
 	if (byte_cnt < 4) {
-		bb_error_msg("cannot read Wake-On-LAN pass");
+		bb_error_msg("can't read Wake-On-LAN pass");
 		return 0;
 	}
 // TODO: check invalid numbers >255??
diff --git a/networking/ipcalc.c b/networking/ipcalc.c
index b5cc3de..18abc12 100644
--- a/networking/ipcalc.c
+++ b/networking/ipcalc.c
@@ -178,7 +178,7 @@
 
 			hostinfo = gethostbyaddr((char *) &ipaddr, sizeof(ipaddr), AF_INET);
 			if (!hostinfo) {
-				bb_herror_msg_and_die("cannot find hostname for %s", argv[0]);
+				bb_herror_msg_and_die("can't find hostname for %s", argv[0]);
 			}
 			str_tolower(hostinfo->h_name);
 
diff --git a/networking/libiproute/ipaddress.c b/networking/libiproute/ipaddress.c
index fcf9623..c450c6a 100644
--- a/networking/libiproute/ipaddress.c
+++ b/networking/libiproute/ipaddress.c
@@ -426,7 +426,7 @@
 			bb_error_msg_and_die(bb_msg_requires_arg, "flush");
 		}
 		if (filter.family == AF_PACKET) {
-			bb_error_msg_and_die("cannot flush link addresses");
+			bb_error_msg_and_die("can't flush link addresses");
 		}
 	}
 
diff --git a/networking/libiproute/iproute.c b/networking/libiproute/iproute.c
index 7031bed..67eb90b 100644
--- a/networking/libiproute/iproute.c
+++ b/networking/libiproute/iproute.c
@@ -499,7 +499,7 @@
 	}
 
 	if (write(flush_fd, "-1", 2) < 2) {
-		bb_perror_msg("cannot flush routing cache");
+		bb_perror_msg("can't flush routing cache");
 		return;
 	}
 	close(flush_fd);
@@ -681,7 +681,7 @@
 	if (filter.tb != -1) {
 		xrtnl_wilddump_request(&rth, do_ipv6, RTM_GETROUTE);
 	} else if (rtnl_rtcache_request(&rth, do_ipv6) < 0) {
-		bb_perror_msg_and_die("cannot send dump request");
+		bb_perror_msg_and_die("can't send dump request");
 	}
 	xrtnl_dump_filter(&rth, print_route, NULL);
 
diff --git a/networking/libiproute/iptunnel.c b/networking/libiproute/iptunnel.c
index 836709c..67afd1b 100644
--- a/networking/libiproute/iptunnel.c
+++ b/networking/libiproute/iptunnel.c
@@ -222,7 +222,7 @@
 				}
 				p->iph.protocol = IPPROTO_IPV6;
 			} else {
-				bb_error_msg_and_die("%s tunnel mode", "cannot guess");
+				bb_error_msg_and_die("%s tunnel mode", "can't guess");
 			}
 		} else if (key == ARG_key) {
 			unsigned uval;
@@ -377,7 +377,7 @@
 	case IPPROTO_IPV6:
 		return do_add_ioctl(cmd, "sit0", &p);
 	default:
-		bb_error_msg_and_die("cannot determine tunnel mode (ipip, gre or sit)");
+		bb_error_msg_and_die("can't determine tunnel mode (ipip, gre or sit)");
 	}
 }
 
@@ -499,7 +499,7 @@
 			continue;
 		type = do_ioctl_get_iftype(name);
 		if (type == -1) {
-			bb_error_msg("cannot get type of [%s]", name);
+			bb_error_msg("can't get type of [%s]", name);
 			continue;
 		}
 		if (type != ARPHRD_TUNNEL && type != ARPHRD_IPGRE && type != ARPHRD_SIT)
diff --git a/networking/libiproute/libnetlink.c b/networking/libiproute/libnetlink.c
index b4cc8df..9e6467d 100644
--- a/networking/libiproute/libnetlink.c
+++ b/networking/libiproute/libnetlink.c
@@ -242,7 +242,7 @@
 	status = sendmsg(rtnl->fd, &msg, 0);
 
 	if (status < 0) {
-		bb_perror_msg("cannot talk to rtnetlink");
+		bb_perror_msg("can't talk to rtnetlink");
 		goto ret;
 	}
 
diff --git a/networking/libiproute/ll_map.c b/networking/libiproute/ll_map.c
index 3c4ef2c..246b9e3 100644
--- a/networking/libiproute/ll_map.c
+++ b/networking/libiproute/ll_map.c
@@ -193,7 +193,7 @@
 	}
 /* out:*/
 	if (ret <= 0)
-		bb_error_msg_and_die("cannot find device \"%s\"", name);
+		bb_error_msg_and_die("can't find device '%s'", name);
 	return ret;
 }
 
diff --git a/networking/nameif.c b/networking/nameif.c
index fb31fbf..36fbb95 100644
--- a/networking/nameif.c
+++ b/networking/nameif.c
@@ -92,7 +92,7 @@
 			lmac = xmalloc(ETH_ALEN);
 			ch->mac = ether_aton_r(selector + (strncmp(selector, "mac=", 4) ? 0 : 4), lmac);
 			if (ch->mac == NULL)
-				bb_error_msg_and_die("cannot parse %s", selector);
+				bb_error_msg_and_die("can't parse %s", selector);
 #if  ENABLE_FEATURE_NAMEIF_EXTENDED
 			found_selector++;
 		};
@@ -211,7 +211,7 @@
 		if (strcmp(ifr.ifr_name, ch->ifname) != 0) {
 			strcpy(ifr.ifr_newname, ch->ifname);
 			ioctl_or_perror_and_die(ctl_sk, SIOCSIFNAME, &ifr,
-					"cannot change ifname %s to %s",
+					"can't change ifname %s to %s",
 					ifr.ifr_name, ch->ifname);
 		}
 		/* Remove list entry of renamed interface */
diff --git a/networking/tc.c b/networking/tc.c
index d963694..3115a52 100644
--- a/networking/tc.c
+++ b/networking/tc.c
@@ -531,7 +531,7 @@
 		if (rtnl_dump_request(&rth, obj == OBJ_qdisc ? RTM_GETQDISC :
 						obj == OBJ_class ? RTM_GETTCLASS : RTM_GETTFILTER,
 						&msg, sizeof(msg)) < 0)
-			bb_simple_perror_msg_and_die("cannot send dump request");
+			bb_simple_perror_msg_and_die("can't send dump request");
 
 		xrtnl_dump_filter(&rth, obj == OBJ_qdisc ? print_qdisc :
 						obj == OBJ_class ? print_class : print_filter,
diff --git a/networking/tcpudp.c b/networking/tcpudp.c
index 98a2aa8..25b3319 100644
--- a/networking/tcpudp.c
+++ b/networking/tcpudp.c
@@ -251,14 +251,14 @@
 	if (!cert) cert = "./cert.pem";
 	if (!key) key = cert;
 	if (matrixSslOpen() < 0)
-		fatal("cannot initialize ssl");
+		fatal("can't initialize ssl");
 	if (matrixSslReadKeys(&keys, cert, key, 0, ca) < 0) {
 		if (client)
-			fatal("cannot read cert, key, or ca file");
-		fatal("cannot read cert or key file");
+			fatal("can't read cert, key, or ca file");
+		fatal("can't read cert or key file");
 	}
 	if (matrixSslNewSession(&ssl, keys, 0, SSL_FLAGS_SERVER) < 0)
-		fatal("cannot create ssl session");
+		fatal("can't create ssl session");
 #endif
 
 	sig_block(SIGCHLD);
@@ -425,7 +425,7 @@
 			if (opts & OPT_h) {
 				free_me1 = remote_hostname = xmalloc_sockaddr2host_noport(&remote.u.sa);
 				if (!remote_hostname) {
-					bb_error_msg("cannot look up hostname for %s", remote_addr);
+					bb_error_msg("can't look up hostname for %s", remote_addr);
 					remote_hostname = remote_addr;
 				}
 			}
@@ -441,7 +441,7 @@
 				if (!local_hostname) {
 					free_me2 = local_hostname = xmalloc_sockaddr2host_noport(&local.u.sa);
 					if (!local_hostname)
-						bb_error_msg_and_die("cannot look up hostname for %s", local_addr);
+						bb_error_msg_and_die("can't look up hostname for %s", local_addr);
 				}
 				/* else: local_hostname is not NULL, but is NOT malloced! */
 			}
diff --git a/networking/udhcp/arpping.c b/networking/udhcp/arpping.c
index 48158fc..3df0f39 100644
--- a/networking/udhcp/arpping.c
+++ b/networking/udhcp/arpping.c
@@ -57,7 +57,7 @@
 	}
 
 	if (setsockopt_broadcast(s) == -1) {
-		bb_perror_msg("cannot enable bcast on raw socket");
+		bb_perror_msg("can't enable bcast on raw socket");
 		goto ret;
 	}
 
diff --git a/networking/udhcp/dhcpd.c b/networking/udhcp/dhcpd.c
index 23292a5..dc5d9ff 100644
--- a/networking/udhcp/dhcpd.c
+++ b/networking/udhcp/dhcpd.c
@@ -77,7 +77,7 @@
 
 	/* Create pidfile */
 	write_pidfile(server_config.pidfile);
-	/* if (!..) bb_perror_msg("cannot create pidfile %s", pidfile); */
+	/* if (!..) bb_perror_msg("can't create pidfile %s", pidfile); */
 
 	bb_info_msg("%s (v"BB_VER") started", applet_name);
 
diff --git a/networking/udhcp/options.c b/networking/udhcp/options.c
index 38f9919..10ec459 100644
--- a/networking/udhcp/options.c
+++ b/networking/udhcp/options.c
@@ -255,6 +255,6 @@
 		}
 	}
 
-	bb_error_msg("cannot add option 0x%02x", code);
+	bb_error_msg("can't add option 0x%02x", code);
 	return 0;
 }
diff --git a/networking/udhcp/signalpipe.c b/networking/udhcp/signalpipe.c
index a025bd8..c181e0e 100644
--- a/networking/udhcp/signalpipe.c
+++ b/networking/udhcp/signalpipe.c
@@ -29,7 +29,7 @@
 {
 	unsigned char ch = sig; /* use char, avoid dealing with partial writes */
 	if (write(signal_pipe.wr, &ch, 1) != 1)
-		bb_perror_msg("cannot send signal");
+		bb_perror_msg("can't send signal");
 }
 
 
diff --git a/networking/wget.c b/networking/wget.c
index 11d39cb..8ca6def 100644
--- a/networking/wget.c
+++ b/networking/wget.c
@@ -626,7 +626,7 @@
 
 	/* Impossible?
 	if ((opt & WGET_OPT_CONTINUE) && !fname_out)
-		bb_error_msg_and_die("cannot specify continue (-c) without a filename (-O)");
+		bb_error_msg_and_die("can't specify continue (-c) without a filename (-O)");
 	*/
 
 	/* Determine where to start transfer */