Make makerepo set the Git merge remote

branch.master.remote previously used to default to origin, which has
recently been changed; it now needs to be set explicitly, which this
patch does.

Closes Debian bug #470517.

Signed-off-by: martin f. krafft <madduck@madduck.net>

ikiwiki-makerepo

@@ -62,6 +62,7 @@ git)
 	git commit -m "initial commit"
 	git remote add origin "$repository"
 	git config branch.master.merge refs/heads/master
+	git config branch.master.remote origin
 	git push --all
 	echo "Directory $srcdir is now a clone of $rcs repository $repository"
 ;;