HgWeb: allow space and unicode chars in filename

Fixes #219

Backported from c88bc43.

Author: Zipher04

SourceHgWeb/SourceHgWeb.php

@@ -275,7 +275,7 @@ private function commit_changeset( $p_repo, $p_input, $p_branch='' ) {
 
 			$t_changeset->author_email = empty($t_commit['author_email'])? '': $t_commit['author_email'];
 
-			preg_match_all('#diff[\s]*-r[\s]([^\s]*)[\s]*-r[\s]([^\s]*)[\s]([^\n]*)\n(Binary file[\s]([^\s]*)[\s]has changed|\-{3}[\s](/dev/null)?[^\t]*[^\n]*\n\+{3}[\s](/dev/null)?[^\t]*\t[^\n]*)#', $p_input, $t_matches, PREG_SET_ORDER);
+			preg_match_all('#diff[\s]*-r[\s]([^\s]*)[\s]*-r[\s]([^\s]*)[\s]([^\n]*)\n(Binary file[\s]([^\r\n\t\f\v]*)[\s]has changed|\-{3}[\s](/dev/null)?[^\t]*[^\n]*\n\+{3}[\s](/dev/null)?[^\t]*\t[^\n]*)#u', $p_input, $t_matches, PREG_SET_ORDER);
 
 			$t_commit['files'] = array();