[PhpUnitBridge] When using phpenv + phpenv-composer plugin, composer executable is wrapped into a bash script

Author: oleg-andreyev

bin/simple-phpunit

@@ -60,7 +60,7 @@ foreach ($defaultEnvs as $envName => $envValue) {
 $COMPOSER = file_exists($COMPOSER = $oldPwd.'/composer.phar')
     || ($COMPOSER = rtrim('\\' === DIRECTORY_SEPARATOR ? preg_replace('/[\r\n].*/', '', `where.exe composer.phar`) : `which composer.phar 2> /dev/null`))
     || ($COMPOSER = rtrim('\\' === DIRECTORY_SEPARATOR ? preg_replace('/[\r\n].*/', '', `where.exe composer`) : `which composer 2> /dev/null`))
-    ? $PHP.' '.escapeshellarg($COMPOSER)
+    ? (file_get_contents($COMPOSER, null, 0, 18) === '#!/usr/bin/env php' ? $PHP : '').' '.escapeshellarg($COMPOSER) // detect shell wrappers by looking at the shebang
     : 'composer';
 
 if (false === $SYMFONY_PHPUNIT_REMOVE = getenv('SYMFONY_PHPUNIT_REMOVE')) {