Cleanup + release note for #4163

CHANGELOG-v3.md

@@ -13,6 +13,7 @@
 - Fixed an error that occurred when an SVG with `/` characters in its `id` attributes was passed to the `svg()` Twig function. ([#4155](https://github.com/craftcms/cms/issues/4155))
 - Fixed a bug where passing `:empty:` or `:notempty:` to a Matrix field param on an element query could return incorrect results for fields that had soft-deleted blocks. ([#4161](https://github.com/craftcms/cms/issues/4161))
 - Fixed a bug where Craft wasn’t returning a `1` exit code for console requests if the server was running under PHP 7. ([#4153](https://github.com/craftcms/cms/issues/4153))
+- Fixed a “World-writable config file 'my.cnf' is ignored” warning that could occur when creating a database backup. ([#4163](https://github.com/craftcms/cms/pull/4163))
 - Fixed a bug where `craft\services\Elements::duplicateElements()` would only ignore non-safe attributes passed to the `$newAttributes` argument.
 - Fixed a bug where `craft\elements\db\ElementQuery::exists()` and `offsetExists()` were ignoring cached query results.
 

src/db/mysql/Schema.php

@@ -323,10 +323,10 @@ private function _createDumpConfigFile(): string
         }
 
         FileHelper::writeToFile($filePath, $contents);
-        // Chmod the file. On some distribution, the php user write files too 'open', which generate a :
-        // [Warning] World-writable config file 'my.cnf' is ignored
-        // Therefore preventing the dump as it uses incorrect settings
-        chmod($filePath, 0644); 
+
+        // Avoid a “world-writable config file 'my.cnf' is ignored” warning
+        chmod($filePath, 0644);
+
         return $filePath;
     }
 }