sort-comp: say "should" instead of "must"

Author: SystemParadox

lib/rules/sort-comp.js

@@ -42,7 +42,7 @@ module.exports = Components.detect(function(context, components) {
 
   var errors = {};
 
-  var MISPOSITION_MESSAGE = '{{propA}} must be placed {{position}} {{propB}}';
+  var MISPOSITION_MESSAGE = '{{propA}} should be placed {{position}} {{propB}}';
 
   var methodsOrder = getMethodsOrder({
     order: [