style fixes
last xcalloc replaced by xzalloc
diff --git a/runit/runit_lib.c b/runit/runit_lib.c
index 5ebbc58..8612a1b 100644
--- a/runit/runit_lib.c
+++ b/runit/runit_lib.c
@@ -337,7 +337,7 @@
 	while (q > 9) { ++len; q /= 10; }
 	if (s) {
 		s += len;
-		do { *--s = '0' + (u % 10); u /= 10; } while(u); /* handles u == 0 */
+		do { *--s = '0' + (u % 10); u /= 10; } while (u); /* handles u == 0 */
 	}
 	return len;
 }
diff --git a/runit/runsv.c b/runit/runsv.c
index e1b5459..9e117fe 100644
--- a/runit/runsv.c
+++ b/runit/runsv.c
@@ -155,7 +155,7 @@
 		if (s->ctrl & C_PAUSE) p = add_str(p, ", paused");
 		if (s->ctrl & C_TERM) p = add_str(p, ", got TERM");
 		if (s->state != S_DOWN)
-			switch(s->want) {
+			switch (s->want) {
 			case W_DOWN:
 				p = add_str(p, ", want down");
 				break;
@@ -329,7 +329,7 @@
 
 static int ctrl(struct svdir *s, char c)
 {
-	switch(c) {
+	switch (c) {
 	case 'd': /* down */
 		s->want = W_DOWN;
 		update_status(s);
diff --git a/runit/sv.c b/runit/sv.c
index 819f314..9471d09 100644
--- a/runit/sv.c
+++ b/runit/sv.c
@@ -75,7 +75,7 @@
 	}
 	r = read(fd, svstatus, 20);
 	close(fd);
-	switch(r) {
+	switch (r) {
 	case 20: break;
 	case -1: warn_cannot("read supervise/status"); return -1;
 	default: warnx_cannot("read supervise/status: bad format"); return -1;
@@ -124,7 +124,7 @@
 static int status(char *unused)
 {
 	r = svstatus_get();
-	switch(r) { case -1: case 0: return 0; }
+	switch (r) { case -1: case 0: return 0; }
 	r = svstatus_print(*service);
 	if (chdir("log") == -1) {
 		if (errno != ENOENT) {
diff --git a/runit/svlogd.c b/runit/svlogd.c
index 7024c3d..c91f85f 100644
--- a/runit/svlogd.c
+++ b/runit/svlogd.c
@@ -262,7 +262,7 @@
 		return 0;
 	}
 	if (ld->ppid)
-		while(!processorstop(ld))
+		while (!processorstop(ld))
 			/* wait */;
 
 	while (fchdir(ld->fddir) == -1)