builtin-remote: fix typo in option description

Signed-off-by: Mike Ralphson <[email protected]>
Signed-off-by: Junio C Hamano <[email protected]>

Author: MikeRalphson

builtin-remote.c

@@ -1216,7 +1216,7 @@ static int update(int argc, const char **argv)
 	struct option options[] = {
 		OPT_GROUP("update specific options"),
 		OPT_BOOLEAN('p', "prune", &prune,
-			    "prune remotes after fecthing"),
+			    "prune remotes after fetching"),
 		OPT_END()
 	};