Use wikimedia/less.php instead of leafo/lessphp (#16813)

* use wikimedias less php

* fix some less related stuff

* fix expected test file

* updates expected test file

2 files changed, 2 insertions, 2 deletions

diff --git a/core/AssetManager/UIAssetMerger/StylesheetUIAssetMerger.php b/core/AssetManager/UIAssetMerger/StylesheetUIAssetMerger.php
index 88db64ec00..c57610a466 100644
--- a/core/AssetManager/UIAssetMerger/StylesheetUIAssetMerger.php
+++ b/core/AssetManager/UIAssetMerger/StylesheetUIAssetMerger.php
@@ -68,7 +68,7 @@ class StylesheetUIAssetMerger extends UIAssetMerger
     
     private function getCssStatementForReplacement($path)
     {
-        return '.nonExistingSelectorOnlyForReplacementOfCssFiles { display:"' . $path . '"; }';
+        return ".nonExistingSelectorOnlyForReplacementOfCssFiles {\n  display: \"" . $path . "\";\n}";
     }
 
     protected function concatenateAssets()
diff --git a/core/Plugin/ThemeStyles.php b/core/Plugin/ThemeStyles.php
index 5d4f81d870..af225643ab 100644
--- a/core/Plugin/ThemeStyles.php
+++ b/core/Plugin/ThemeStyles.php
@@ -224,7 +224,7 @@ class ThemeStyles
         $result = '';
         foreach (get_object_vars($this) as $name => $value) {
             $varName = isset(self::$propertyNamesToLessVariableNames[$name]) ? self::$propertyNamesToLessVariableNames[$name] : $this->getGenericThemeVarName($name);
-            $result .= "@$varName = $value;\n";
+            $result .= "@$varName: $value;\n";
         }
         return $result;
     }