Merge branch 'feature/predictable-standards-order' of https://github.com/jrfnl/PHP_CodeSniffer

Author: gsherwood

src/Util/Standards.php

@@ -180,7 +180,8 @@ public static function getInstalledStandards(
             // Check if the installed dir is actually a standard itself.
             $csFile = $standardsDir.'/ruleset.xml';
             if (is_file($csFile) === true) {
-                $installedStandards[] = basename($standardsDir);
+                $basename = basename($standardsDir);
+                $installedStandards[$basename] = $basename;
                 continue;
             }
 
@@ -190,6 +191,7 @@ public static function getInstalledStandards(
             }
 
             $di = new \DirectoryIterator($standardsDir);
+            $standardsInDir = [];
             foreach ($di as $file) {
                 if ($file->isDir() === true && $file->isDot() === false) {
                     $filename = $file->getFilename();
@@ -202,10 +204,13 @@ public static function getInstalledStandards(
                     // Valid coding standard dirs include a ruleset.
                     $csFile = $file->getPathname().'/ruleset.xml';
                     if (is_file($csFile) === true) {
-                        $installedStandards[] = $filename;
+                        $standardsInDir[$filename] = $filename;
                     }
                 }
             }
+
+            natsort($standardsInDir);
+            $installedStandards += $standardsInDir;
         }//end foreach
 
         return $installedStandards;