Most body comments in this project do not start uppercase

Author: erayd

src/JsonSchema/Constraints/UndefinedConstraint.php

@@ -154,7 +154,7 @@ protected function validateCommonProperties(&$value, $schema = null, JsonPointer
                     $this->addError(ConstraintError::REQUIRED(), $path, array('property' => $propertyName));
                 }
             } else {
-                // If the value is both undefined and not required, skip remaining checks
+                // if the value is both undefined and not required, skip remaining checks
                 // in this method which assume an actual, defined instance when validating.
                 if ($value instanceof self) {
                     return;