[monitoring-plugins] check_dns: simplify loop

[Rolf Eike Beer]

 Module: monitoring-plugins
 Branch: master
 Commit: e60c6c04f04022a72bf3a1074402342e948c8c0f
 Author: Rolf Eike Beer <eike at sf-mail.de>
   Date: Wed Jul 25 19:05:16 2018 +0200
    URL: https://www.monitoring-plugins.org/repositories/monitoring-plugins/commit/?id=e60c6c0

check_dns: simplify loop

---

 plugins/check_dns.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/plugins/check_dns.c b/plugins/check_dns.c
index f206163..ae4123b 100644
--- a/plugins/check_dns.c
+++ b/plugins/check_dns.c
@@ -168,8 +168,8 @@ main (int argc, char **argv)
       temp_buffer++;
 
       /* Strip leading spaces */
-      for (; *temp_buffer != '\0' && *temp_buffer == ' '; temp_buffer++)
-        /* NOOP */;
+      while (*temp_buffer == ' ')
+        temp_buffer++;
 
       strip(temp_buffer);
       if (temp_buffer==NULL || strlen(temp_buffer)==0) {