Merge branch '3.4' into 4.0

* 3.4:
  [Yaml] Fix regression when trying to parse multiline
  Add PHPDbg support to HTTP components
  bumped Symfony version to 2.8.38
  updated VERSION for 2.8.37
  updated CHANGELOG for 2.8.37
  bumped Symfony version to 2.7.45
  updated VERSION for 2.7.44
  update CONTRIBUTORS for 2.7.44
  updated CHANGELOG for 2.7.44
  Fix check of color support on Windows

PhpExecutableFinder.php

@@ -39,7 +39,7 @@ public function find($includeArgs = true)
         $args = $includeArgs && $args ? ' '.implode(' ', $args) : '';
 
         // PHP_BINARY return the current sapi executable
-        if (PHP_BINARY && in_array(PHP_SAPI, array('cli', 'cli-server', 'phpdbg'))) {
+        if (PHP_BINARY && \in_array(PHP_SAPI, array('cli', 'cli-server', 'phpdbg'), true)) {
             return PHP_BINARY.$args;
         }