Merge branch '2.7' into 2.8

* 2.7:
  [appveyor] Workaround GitHub disabling of low versions of TLS
  [Routing] Don't throw 405 when scheme requirement doesn't match
  [Routing] Revert throwing 405 on missed slash/scheme redirections
  Fix ArrayInput::toString() for InputArgument::IS_ARRAY args
  [Routing] fix CS

Author: nicolas-grekas

Input/ArrayInput.php

@@ -106,7 +106,7 @@ public function __toString()
                     $params[] = $param.('' != $val ? '='.$this->escapeToken($val) : '');
                 }
             } else {
-                $params[] = is_array($val) ? array_map(array($this, 'escapeToken'), $val) : $this->escapeToken($val);
+                $params[] = is_array($val) ? implode(' ', array_map(array($this, 'escapeToken'), $val)) : $this->escapeToken($val);
             }
         }
 

Tests/Input/ArrayInputTest.php

@@ -143,5 +143,8 @@ public function testToString()
 
         $input = new ArrayInput(array('-b' => array('bval_1', 'bval_2'), '--f' => array('fval_1', 'fval_2')));
         $this->assertSame('-b=bval_1 -b=bval_2 --f=fval_1 --f=fval_2', (string) $input);
+
+        $input = new ArrayInput(array('array_arg' => array('val_1', 'val_2')));
+        $this->assertSame('val_1 val_2', (string) $input);
     }
 }