Fix is_executable warning exception

The @ gets rid of the warning when this command fails. `is_executable(): open_basedir restriction in effect`
symfony · m3esma · Mar 9, 2018 · Mar 9, 2018 · 6972e1ed4d34e95459435f7293c61e59499db96e
commit 6972e1ed4d34e95459435f7293c61e59499db96e
diff --git a/src/Symfony/Component/Process/PhpExecutableFinder.php b/src/Symfony/Component/Process/PhpExecutableFinder.php
@@ -65,7 +65,7 @@ public function find($includeArgs = true)
            }
        }

-        if (is_executable($php = PHP_BINDIR.('\\' === DIRECTORY_SEPARATOR ? '\\php.exe' : '/php'))) {
+        if (@is_executable($php = PHP_BINDIR.('\\' === DIRECTORY_SEPARATOR ? '\\php.exe' : '/php'))) {
            return $php;
        }