Sync bgpd and ripd set_metric_addsub_cmd commands. Fixes bugzilla #192.
[backport candidate]
diff --git a/ripd/rip_routemap.c b/ripd/rip_routemap.c
index 275f683..e7692be 100644
--- a/ripd/rip_routemap.c
+++ b/ripd/rip_routemap.c
@@ -971,7 +971,7 @@
        "set metric <+/-metric>",
        SET_STR
        "Metric value for destination routing protocol\n"
-       "Add or subtract BGP metric\n")
+       "Add or subtract metric\n")
 
 DEFUN (no_set_metric,
        no_set_metric_cmd,