[WebServerBundle] fix a bug where require would not require the good file because of env#25523

nicolas-grekas merged 1 commit intosymfony:3.3symfony/symfony:3.3from

Simperfit:bugfix/fix-a-bug-with-web-server-bundle-where-putenv-is-not-workingSimperfit/symfony:bugfix/fix-a-bug-with-web-server-bundle-where-putenv-is-not-workingCopy head branch name to clipboard