Fix a typo.

Summary: Self-explanatory.

Test Plan: Eyeball it.

Reviewers: epriestley, #blessed_reviewers

Reviewed By: epriestley, #blessed_reviewers

Subscribers: epriestley, Korvin

Differential Revision: https://secure.phabricator.com/D9563

Author: joshuaspence

src/applications/daemon/management/PhabricatorDaemonManagementWorkflow.php

@@ -79,7 +79,7 @@ private function findDaemonClass($substring) {
     if (count($match) == 0) {
       throw new PhutilArgumentUsageException(
         pht(
-          "No daemons match '%s'! Use 'phd list' for a list of avialable ".
+          "No daemons match '%s'! Use 'phd list' for a list of available ".
           "daemons.",
           $substring));
     } else if (count($match) > 1) {