Dont call sprintf() when no placeholders are used

Author: nicolas-grekas

Definition.php

@@ -373,7 +373,7 @@ public function setMethodCalls(array $calls = array())
     public function addMethodCall($method, array $arguments = array())
     {
         if (empty($method)) {
-            throw new InvalidArgumentException(sprintf('Method name cannot be empty.'));
+            throw new InvalidArgumentException('Method name cannot be empty.');
         }
         $this->calls[] = array($method, $arguments);
 

Dumper/YamlDumper.php

@@ -93,19 +93,19 @@ private function addService($id, $definition)
         }
 
         if ($definition->isSynthetic()) {
-            $code .= sprintf("        synthetic: true\n");
+            $code .= "        synthetic: true\n";
         }
 
         if ($definition->isSynchronized(false)) {
-            $code .= sprintf("        synchronized: true\n");
+            $code .= "        synchronized: true\n";
         }
 
         if ($definition->getFactoryClass(false)) {
             $code .= sprintf("        factory_class: %s\n", $this->dumper->dump($definition->getFactoryClass(false)));
         }
 
         if ($definition->isLazy()) {
-            $code .= sprintf("        lazy: true\n");
+            $code .= "        lazy: true\n";
         }
 
         if ($definition->getFactoryMethod(false)) {