vty: fix warnings

Gcc now warns if function that takes printf style formatting is
passed a non-constant string. This avoid issues when a format character
is entered in some command.

Signed-off-by: David Lamparter <equinox@diac24.net>

1 files changed, 1 insertions, 1 deletions

diff --git a/lib/if.c b/lib/if.c
index e3107116..d14cfb93 100644
--- a/lib/if.c
+++ b/lib/if.c
@@ -664,7 +664,7 @@ connected_log (struct connected *connected, char *str)
       strncat (logbuf, inet_ntop (p->family, &p->u.prefix, buf, BUFSIZ),
 	       BUFSIZ - strlen(logbuf));
     }
-  zlog (NULL, LOG_INFO, logbuf);
+  zlog (NULL, LOG_INFO, "%s", logbuf);
 }
 
 /* If two connected address has same prefix return 1. */