fixed the guard clause

Author: KoenDierckx

lib/puppet/provider/vcsrepo/git.rb

@@ -642,7 +642,7 @@ def add_safe_directory
 
   # @!visibility private
   def remove_safe_directory
-    return if safe_directories.include?(@resource.value(:path))
+    return unless safe_directories.include?(@resource.value(:path))
 
     notice("Removing '#{@resource.value(:path)}' from safe directory list")
     args = ['config', '--global', '--unset', 'safe.directory', @resource.value(:path)]