Make sure all indents are 2 spaces

Author: sirbrillig

phpcs.xml

@@ -4,17 +4,29 @@
         Originally from https://gist.github.com/Ovsyanka/e2ab2ff76e7c0d7e75a1e4213a03ff95
         PSR2 with changes:
             - bracers on end of line instead new line
+            - two space indentation
     </description>
     <rule ref="PSR2">
         <exclude name="Squiz.Functions.MultiLineFunctionDeclaration.BraceOnSameLine" />
         <exclude name="PSR2.Classes.ClassDeclaration.OpenBraceNewLine" />
         <exclude name="Generic.WhiteSpace.DisallowTabIndent"/>
     </rule>
+    <arg name="tab-width" value="2"/>
     <rule ref="Generic.WhiteSpace.ScopeIndent">
         <properties>
             <property name="indent" value="2"/>
         </properties>
     </rule>
+    <rule ref="Squiz.Functions.MultiLineFunctionDeclaration">
+        <properties>
+            <property name="indent" value="2" />
+        </properties>
+    </rule>
+    <rule ref="PSR2.Methods.FunctionCallSignature">
+        <properties>
+            <property name="indent" value="2" />
+        </properties>
+    </rule>
     <rule ref="Generic.Functions.OpeningFunctionBraceKernighanRitchie" />
     <rule ref="Generic.Classes.OpeningBraceSameLine"/>
 </ruleset>