app/sourcemanager.php: Fixed a bug where a backslash was not escaped in a string.
app/sourcemanager.php: Fixed a bug where a backslash was not escaped in a string.

Signed-off-by: Eddie Ringle <bacc1c505cb1756c59242c0a8ee25cd990a210e9@eringle.net>

EddieRingle/wicketpixie,EddieRingle/wicketpixie