Minor tidying of ArcanistCoffeeLintLinter

Summary: Self-explanatory.

Test Plan: N/A

Reviewers: #blessed_reviewers, epriestley

Reviewed By: #blessed_reviewers, epriestley

Subscribers: Korvin, epriestley

Differential Revision: https://secure.phabricator.com/D11199

src/lint/linter/ArcanistCoffeeLintLinter.php

@@ -42,7 +42,9 @@ final class ArcanistCoffeeLintLinter extends ArcanistExternalLinter {
   }
 
   public function getInstallInstructions() {
-    return pht('Install CoffeeLint using `npm install -g coffeelint`.');
+    return pht(
+      'Install CoffeeLint using `%s`.',
+      'npm install -g coffeelint');
   }
 
   public function shouldExpectCommandErrors() {
@@ -102,17 +104,17 @@ final class ArcanistCoffeeLintLinter extends ArcanistExternalLinter {
 
     $files = $report_dom->getElementsByTagName('file');
     $messages = array();
+
     foreach ($files as $file) {
       foreach ($file->getElementsByTagName('error') as $error) {
-
         // Column number is not provided in the output.
         // See https://github.com/clutchski/coffeelint/issues/87
 
-        $message = new ArcanistLintMessage();
-        $message->setPath($path);
-        $message->setLine($error->getAttribute('line'));
-        $message->setCode($this->getLinterName());
-        $message->setDescription(preg_replace(
+        $message = id(new ArcanistLintMessage())
+          ->setPath($path)
+          ->setLine($error->getAttribute('line'))
+          ->setCode($this->getLinterName())
+          ->setDescription(preg_replace(
             '/; context: .*$/',
             '.',
             $error->getAttribute('message')));
@@ -139,10 +141,8 @@ final class ArcanistCoffeeLintLinter extends ArcanistExternalLinter {
   }
 
   protected function getLintCodeFromLinterConfigurationKey($code) {
-
     // NOTE: We can't figure out which rule generated each message, so we
     // can not customize severities.
-
     throw new Exception(
       pht(
         "CoffeeLint does not currently support custom severity levels, ".