added validation message to language file for required_with

Signed-off-by: Jason Walton <jwalton512@gmail.com>

laravel/validator.php

@@ -863,6 +863,20 @@ class Validator {
 		return $message;
 	}
 
+	/**
+	 * Replace all place-holders for the required_with rule.
+	 *
+	 * @param  string  $message
+	 * @param  string  $attribute
+	 * @param  string  $rule
+	 * @param  array   $parameters
+	 * @return string
+	 */
+	protected function replace_required_with($message, $attribute, $rule, $parameters)
+	{
+		return str_replace(':field', $this->attribute($parameters[0]), $message);
+	}
+
 	/**
 	 * Replace all place-holders for the between rule.
 	 *
@@ -1208,4 +1222,4 @@ class Validator {
 		throw new \Exception("Method [$method] does not exist.");
 	}
 
-}
+}