isisd, ospf6d: use bug-report information from autoconf

Signed-off-by: Christian Franke <chris@opensourcerouting.org>
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
diff --git a/isisd/isis_main.c b/isisd/isis_main.c
index dcbc3de..96816eb 100644
--- a/isisd/isis_main.c
+++ b/isisd/isis_main.c
@@ -144,7 +144,7 @@
 -C, --dryrun       Check configuration for validity and exit\n\
 -h, --help         Display this help and exit\n\
 \n\
-Report bugs to http://bugzilla.quagga.net\n", progname);
+Report bugs to %s\n", progname, ZEBRA_BUG_ADDRESS);
     }
 
   exit (status);