Merge branch 'bozaro/gitlab-shell-lang'

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

CHANGELOG

+v2.6.6 (unreleased)
+  - Do not clean LANG environment variable for the git hooks when working through the SSH-protocol
+
 v2.6.5
   - Handle broken symlinks in create-hooks
 

lib/gitlab_shell.rb

@@ -122,6 +122,7 @@ class GitlabShell
     env = {
       'PATH' => ENV['PATH'],
       'LD_LIBRARY_PATH' => ENV['LD_LIBRARY_PATH'],
+      'LANG' => ENV['LANG'],
       'GL_ID' => @key_id
     }