git-fetch: avoid using "case ... in (arm)"

NetBSD ash chokes on the optional open parenthesis for case arms.  Inside
$(command substitution), however, bash barfs without.  So adjust things
accordingly.

Originally pointed out by Dennis Stosberg.

Signed-off-by: Junio C Hamano <junkio@cox.net>

git-fetch.sh

@@ -211,20 +211,20 @@ esac
 reflist=$(get_remote_refs_for_fetch "$@")
 if test "$tags"
 then
-	taglist=$(IFS="	" &&
+	taglist=`IFS="	" &&
 		  git-ls-remote $upload_pack --tags "$remote" |
 	          while read sha1 name
 		  do
 			case "$name" in
-			(*^*) continue ;;
+			*^*) continue ;;
 			esac
 		  	if git-check-ref-format "$name"
 			then
 			    echo ".${name}:${name}"
 			else
 			    echo >&2 "warning: tag ${name} ignored"
 			fi
-		  done)
+		  done`
 	if test "$#" -gt 1
 	then
 		# remote URL plus explicit refspecs; we need to merge them.