Issue #27726: Fix "make tags"

* Memove -t option of ctags. The option was kept for backward compatibility,
  but it was completly removed recently. Patch written by Stéphane Wirtel.
* Set locale to C to call sort. vim expects that the tags file is sorted using
  english collation, so it fails if the locale is french for example. Use
  LC_ALL=C to force english sorting order. .
1 file changed