Minor grammar fix. Committing this without review.

git-svn-id: svn://bind10.isc.org/svn/bind10/trunk@3308 e5f2f494-b856-4b98-b285-d166d9295462

src/bin/zonemgr/zonemgr.py.in

@@ -479,7 +479,7 @@ class Zonemgr:
         # jitter should not be bigger than half of the original value
         if config_data.get('jitter_scope') > 0.5:
             config_data['jitter_scope'] = 0.5
-            log_msg("[b10-zonemgr] jitter_scope is too bigger, its value will "
+            log_msg("[b10-zonemgr] jitter_scope is too big, its value will "
                       "be set to 0.5") 
 
     def _parse_cmd_params(self, args, command):