Be explicit on vcs repo provier.

Change-Id: I5313d34e2590e4ef9c1bfb43bda47a3ccfeede56
Reviewed-on: https://review.openstack.org/11264
Reviewed-by: James E. Blair <corvus@inaugust.com>
Reviewed-by: Clark Boylan <clark.boylan@gmail.com>
Approved: Monty Taylor <mordred@inaugust.com>
Tested-by: Jenkins

modules/mediawiki/manifests/app.pp

@@ -2,6 +2,7 @@ class mediawiki::app {
 
   vcsrepo { "/srv/mediawiki/w":
     ensure => latest,
+    provier => git,
     source => "https://gerrit.wikimedia.org/r/p/mediawiki/core.git",
     revision => "origin/master",
   }