Ruleset::explain(): use natural sorting

... for the list of included sniffs.

The `SORT_NATURAL` and the `SORT_FLAG_CASE` flag are available since PHP 5.4, so can be used without issue.

Author: jrfnl

CHANGELOG.md

@@ -83,6 +83,8 @@ The file documents changes to the PHP_CodeSniffer project.
     - Thanks to @Daimona for the patch
 - Runtime performance improvement for PHPCS CLI users. The improvement should be most noticeable for users on Windows.
     - Thanks to Juliette Reinders Folmer (@jrfnl) for the patch
+- The -e (explain) command will now list sniffs in natural order
+    - Thanks to Juliette Reinders Folmer (@jrfnl) for the patch
 
 ### Removed
 - Removed support for installing via PEAR

src/Ruleset.php

@@ -238,7 +238,7 @@ public function __construct(Config $config)
     public function explain()
     {
         $sniffs = array_keys($this->sniffCodes);
-        sort($sniffs);
+        sort($sniffs, (SORT_NATURAL | SORT_FLAG_CASE));
 
         $sniffCount = count($sniffs);