DDC-1136: Prevent backup files to be recognized as valid Entity files

[doctrinebot]

Jira issue originally created by user fabpot:

The Doctrine2 generator backup Entity files when it adds code into them. The files are named after the original file with a _prepended.

The problem is that these backup files are valid PHP files, and as such, they are loaded by Doctrine2. A PHP fatal error is then fired: "Cannot redeclare class...".

Instead of prepending , why not appending _{, which is a well supported convention? (foo.php} vs ~foo.php)

Patch is here: #35

[doctrinebot]

Comment created by @beberlei:

Applied and merged to 2.0.x

[doctrinebot]

Issue was closed with resolution "Fixed"