ezsystems/ezpublish-legacy — pull request #729 by patrickallaert (2013-08-27 15:11:04+00:00)
Title: Fixed: EZP-21457: eZSys::escapeShellArgument() escapes "\" while the shell escape character is the simple quote

Fixes: https://jira.ez.no/browse/EZP-21457

When single quotes are used, backslashes MUST NOT be escaped:

```
$ echo '\'
\
$ echo '\\'
\\
```