minor #14367 CS fixes (keradus)

This PR was merged into the 2.3 branch.

Discussion
----------

CS fixes

| Q             | A
| ------------- | ---
| Bug fix?      | no
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | N/A
| License       | MIT
| Doc PR        | N/A

Update before releasing PHP CS Fixer 1.7.

To keep fabbot.io happy ;)

Commits
-------

cfa3e95 CS fixes

Author: fabpot

Templating/Helper/CodeHelper.php

@@ -55,7 +55,7 @@ public function abbrClass($class)
         $parts = explode('\\', $class);
         $short = array_pop($parts);
 
-        return sprintf("<abbr title=\"%s\">%s</abbr>", $class, $short);
+        return sprintf('<abbr title="%s">%s</abbr>', $class, $short);
     }
 
     public function abbrMethod($method)
@@ -64,9 +64,9 @@ public function abbrMethod($method)
             list($class, $method) = explode('::', $method, 2);
             $result = sprintf('%s::%s()', $this->abbrClass($class), $method);
         } elseif ('Closure' === $method) {
-            $result = sprintf("<abbr title=\"%s\">%s</abbr>", $method, $method);
+            $result = sprintf('<abbr title="%s">%s</abbr>', $method, $method);
         } else {
-            $result = sprintf("<abbr title=\"%s\">%s</abbr>()", $method, $method);
+            $result = sprintf('<abbr title="%s">%s</abbr>()', $method, $method);
         }
 
         return $result;
@@ -86,7 +86,7 @@ public function formatArgs(array $args)
             if ('object' === $item[0]) {
                 $parts = explode('\\', $item[1]);
                 $short = array_pop($parts);
-                $formattedValue = sprintf("<em>object</em>(<abbr title=\"%s\">%s</abbr>)", $item[1], $short);
+                $formattedValue = sprintf('<em>object</em>(<abbr title="%s">%s</abbr>)', $item[1], $short);
             } elseif ('array' === $item[0]) {
                 $formattedValue = sprintf('<em>array</em>(%s)', is_array($item[1]) ? $this->formatArgs($item[1]) : $item[1]);
             } elseif ('string' === $item[0]) {