Fix XML parsing exceptions when revisions with empty log messages are parsed.

This fixes issue 518; Dmitry is added to AUTHORS.

AUTHORS

@@ -7,6 +7,7 @@ Much appreciated contributors (in alphabetical order):
     Ludovic Bellière
     bohwaz <http://bohwaz.net/>
     Adrien Bustany
+    Dmitry Dulepov
     Baptiste Durand-Bret
     Manuel Eidenberger <eidenberger@gmail.com>
     Raphaël Emourgeon

NEWS.mdtext

@@ -37,6 +37,7 @@
 - Add more file extensions supported by our in-tree prettify version (issues 490 and 567)
 - Do not clean `<ins>` and `<del>` HTML markup from user input (issue 509)
 - Improve HTML validation by switching from `strict` to `transitional` DOCTYPE (issue 511)
+- Ignore XML parsing problems when trying to retrieve commit messages for svn (issue 518)
 - Properly handle git commits without a changelog title (issue 520)
 - Improve BSD compatibility in shell scripts (issue 526)
 - Properly render inner whitespaces in viewed issue attachments (issue 528)

src/IDF/Scm/Svn.php

@@ -266,8 +266,13 @@ class IDF_Scm_Svn extends IDF_Scm
                        escapeshellarg($this->repo),
                        escapeshellarg($rev));
         $cmd = Pluf::f('idf_exec_cmd_prefix', '').$cmd;
+        try {
             $xml = simplexml_load_string(self::shell_exec('IDF_Scm_Svn::getCommitMessage', $cmd));
             $this->cache['commitmess'][$rev] = (string) $xml->logentry->msg;
+        }
+        catch (Exception $e) {
+            $this->cache['commitmess'][$rev] = '';
+        }
         return $this->cache['commitmess'][$rev];
     }