Fixed bad help message for the git access.

Git has 2 methods to access a repository, one with gitdaemon to do a
checkout and one with SSH to perform the push. We need to provide those
2 methods.

src/IDF/conf/idf.php-dist

@@ -61,6 +61,7 @@ $cfg['git_repositories'] = '/home/git/repositories/%s.git';
 # tree view.
 #
 $cfg['git_remote_url'] = 'git://localhost/%s.git';
+$cfg['git_write_remote_url'] = 'git@localhost:%s.git';
 
 # Same as for git, you can have multiple repositories, one for each
 # project or a single one for all the projects.