Use unsigned printf/scanf conversion where more appropriate

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
diff --git a/networking/arp.c b/networking/arp.c
index 40d2441..e79b1b6 100644
--- a/networking/arp.c
+++ b/networking/arp.c
@@ -459,12 +459,12 @@
 		arp_disp(hostname, ip, type, flags, hwa, mask, dev);
 	}
 	if (option_mask32 & ARP_OPT_v)
-		printf("Entries: %d\tSkipped: %d\tFound: %d\n",
+		printf("Entries: %u\tSkipped: %u\tFound: %u\n",
 				entries, entries - shown, shown);
 
 	if (!shown) {
 		if (hw_set || host || device[0])
-			printf("No match found in %d entries\n", entries);
+			printf("No match found in %u entries\n", entries);
 	}
 	if (ENABLE_FEATURE_CLEAN_UP) {
 		free((char*)host);
diff --git a/networking/netstat.c b/networking/netstat.c
index c0c6ba5..f80b845 100644
--- a/networking/netstat.c
+++ b/networking/netstat.c
@@ -125,10 +125,10 @@
  */
 #define ADDR_WIDE                51  /* INET6_ADDRSTRLEN + 5 for the port number */
 #if ENABLE_FEATURE_NETSTAT_WIDE
-# define FMT_NET_CONN_DATA       "%s   %6ld %6ld %-*s %-*s %-12s"
+# define FMT_NET_CONN_DATA       "%s   %6lu %6lu %-*s %-*s %-12s"
 # define FMT_NET_CONN_HEADER     "\nProto Recv-Q Send-Q %-*s %-*s State       %s\n"
 #else
-# define FMT_NET_CONN_DATA       "%s   %6ld %6ld %-23s %-23s %-12s"
+# define FMT_NET_CONN_DATA       "%s   %6lu %6lu %-23s %-23s %-12s"
 # define FMT_NET_CONN_HEADER     "\nProto Recv-Q Send-Q %-23s %-23s State       %s\n"
 #endif
 
@@ -403,7 +403,7 @@
 			"%*d: %32[0-9A-Fa-f]:%X "
 			"%32[0-9A-Fa-f]:%X %X "
 			"%lX:%lX %*X:%*X "
-			"%*X %d %*d %ld ",
+			"%*X %d %*d %lu ",
 			local_addr, &param->local_port,
 			rem_addr, &param->rem_port, &param->state,
 			&param->txq, &param->rxq,
@@ -611,7 +611,7 @@
 		strcat(ss_flags, "N ");
 	strcat(ss_flags, "]");
 
-	printf("%-5s %-6ld %-11s %-10s %-13s %6lu ",
+	printf("%-5s %-6lu %-11s %-10s %-13s %6lu ",
 		ss_proto, refcnt, ss_flags, ss_type, ss_state, inode
 		);
 
diff --git a/networking/pscan.c b/networking/pscan.c
index 28005ad..72ed8cd 100644
--- a/networking/pscan.c
+++ b/networking/pscan.c
@@ -157,7 +157,7 @@
 	}
 	if (ENABLE_FEATURE_CLEAN_UP) free(lsap);
 
-	printf("%d closed, %d open, %d timed out (or blocked) ports\n",
+	printf("%u closed, %u open, %u timed out (or blocked) ports\n",
 					closed_ports,
 					open_ports,
 					nports - (closed_ports + open_ports));