Change lint_engine to lint.engine

Summary: Also unit_engine.

Test Plan: None.

Reviewers: epriestley

Reviewed By: epriestley

CC: aran, Korvin, aurelijus

Differential Revision: https://secure.phabricator.com/D4001

src/lint/engine/ArcanistLintEngine.php

@@ -3,12 +3,12 @@
 /**
  * Manages lint execution. When you run 'arc lint' or 'arc diff', Arcanist
  * checks your .arcconfig to see if you have specified a lint engine in the
- * key "lint_engine". The engine must extend this class. For example:
+ * key "lint.engine". The engine must extend this class. For example:
  *
  *  lang=js
  *  {
  *    // ...
- *    "lint_engine" : "ExampleLintEngine",
+ *    "lint.engine" : "ExampleLintEngine",
  *    // ...
  *  }
  *

src/unit/engine/PhpunitTestEngine.php

@@ -3,7 +3,7 @@
 /**
  * PHPUnit wrapper
  *
- * To use, set unit_engine in .arcconfig, or use --engine flag
+ * To use, set unit.engine in .arcconfig, or use --engine flag
  * with arc unit. Currently supports only class & test files
  * (no directory support).
  * To use custom phpunit configuration, set phpunit_config in

src/workflow/ArcanistSvnHookPreCommitWorkflow.php

@@ -181,7 +181,7 @@ public function run() {
       $transaction,
       $repository);
 
-    $lint_engine = $working_copy->getConfig('lint_engine');
+    $lint_engine = $working_copy->getConfig('lint.engine');
     if (!$lint_engine) {
       return 0;
     }