Use Kernighan-Ritchie style braces

Exclusion of PSR-2 rule for BraceOnSameLine is not enough. We need to specifically force this rule.

ruleset.xml

@@ -39,5 +39,8 @@
   </rule>
 
   <!-- Verify that operators have valid spacing surrounding them -->
-  <rule ref="Squiz.WhiteSpace.OperatorSpacing"></rule>
+  <rule ref="Squiz.WhiteSpace.OperatorSpacing"/>
+  
+  <!-- Force braces to be on the same lines in fuction declarations -->
+  <rule ref="Generic.Functions.OpeningFunctionBraceKernighanRitchie"/>
 </ruleset>