builtin-remote: fix typo in option description

Signed-off-by: Mike Ralphson <mike@abacus.co.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/builtin-remote.c b/builtin-remote.c
index ca7c639..2ed752c 100644
--- a/builtin-remote.c
+++ b/builtin-remote.c
@@ -1216,7 +1216,7 @@
 	struct option options[] = {
 		OPT_GROUP("update specific options"),
 		OPT_BOOLEAN('p', "prune", &prune,
-			    "prune remotes after fecthing"),
+			    "prune remotes after fetching"),
 		OPT_END()
 	};