Replace tabs by spaces

.stickler.yml

@@ -1,10 +1,10 @@
 ---
 linters:
-	phpcs:
-			standard: 'dev/setup/codesniffer/ruleset.xml'
-			extensions: 'php'
-			tab_width: 4
-			fixer: true
+  phpcs:
+      standard: 'dev/setup/codesniffer/ruleset.xml'
+      extensions: 'php'
+      tab_width: 4
+      fixer: true
 
 fixers:
-		enable: true
+    enable: true