fix clang warning: comparison of unsigned expression < 0 is always false

diff --git a/src/fping.c b/src/fping.c
index c6becd9e2d94f8cc85d00902cc82771fefc40ae7..dd43500cffff4b79ca7968065a63938de9cf483f 100644 (file)
--- a/src/fping.c
+++ b/src/fping.c
@@ -684,7 +684,7 @@ int main( int argc, char **argv )
 
     /* validate various option settings */
 
-    if (ttl < 0 || ttl > 255) {  
+    if (ttl > 255) {
         fprintf(stderr, "ping: ttl %u out of range\n", ttl);  
         usage(1);
     }