Prefix Config errors with "ERROR: "

Author: rodrigoprimo

Scripts/DocCodeExamples/Config.php

@@ -147,7 +147,7 @@ public function __construct(Writer $writer)
     public function getProperty(string $propertyName)
     {
         if (isset($this->{$propertyName}) === false) {
-            throw new \RuntimeException(sprintf('Property "%s" does not exist', $propertyName));
+            throw new \RuntimeException(sprintf('ERROR: Property "%s" does not exist', $propertyName));
         }
 
         return $this->{$propertyName};
@@ -198,7 +198,7 @@ private function processCliCommand()
 
         foreach ($args as $arg) {
             if (\strpos($arg, '-') === 0 && $this->isUnsupportedNamedArgument($arg) === true) {
-                throw new \RuntimeException("Unsupported argument $arg");
+                throw new \RuntimeException("ERROR: Unsupported argument $arg");
             }
 
             if (\strpos($arg, '--exclude=') === 0) {
@@ -301,7 +301,7 @@ protected function processTargetPathArgument(string $arg): string
         $realpath = \realpath($arg);
 
         if ($realpath === false) {
-            throw new \RuntimeException(\sprintf('Target path %s does not exist', $arg));
+            throw new \RuntimeException(\sprintf('ERROR: Target path %s does not exist', $arg));
         }
 
         return Helper::normalizePath($realpath);