style fixes
last xcalloc replaced by xzalloc
diff --git a/networking/libiproute/utils.h b/networking/libiproute/utils.h
index 0b0d754..98634dd 100644
--- a/networking/libiproute/utils.h
+++ b/networking/libiproute/utils.h
@@ -30,7 +30,7 @@
 
 extern void incomplete_command(void) ATTRIBUTE_NORETURN;
 
-#define NEXT_ARG() do { argv++; if (--argc <= 0) incomplete_command(); } while(0)
+#define NEXT_ARG() do { argv++; if (--argc <= 0) incomplete_command(); } while (0)
 
 typedef struct
 {