DevTools: Enabled check_localization presubmit script

* Enabled the check_localization presubmit script.
* Fixed localization issues caught by the check_localization presubmit script.
* Updated the check_localization script to allow contatenation of non-alphabetic strings with localized strings.
  * For example, ls`Status Code` + ": " is a valid concatenation. This allows for decorations to be concatenated with localized strings.

Change-Id: I741940c9ebdac363ac0ccad3f7de20d508204e2b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1544878
Auto-Submit: Lorne Mitchell <lomitch@microsoft.com>
Reviewed-by: Joel Einbinder <einbinder@chromium.org>
Reviewed-by: Pavel Feldman <pfeldman@chromium.org>
Commit-Queue: Pavel Feldman <pfeldman@chromium.org>
Cr-Original-Commit-Position: refs/heads/master@{#647134}
Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src
Cr-Mirrored-Commit: 7a329cb73b0b5d5cddb89a34fd7da6cb1a3c87dd
diff --git a/front_end/audits2/Audits2StatusView.js b/front_end/audits2/Audits2StatusView.js
index af4105f..149eb45 100644
--- a/front_end/audits2/Audits2StatusView.js
+++ b/front_end/audits2/Audits2StatusView.js
@@ -223,8 +223,7 @@
     this._statusText.createChild('p').createTextChild(Common.UIString('Ah, sorry! We ran into an error.'));
     if (Audits2.StatusView.KnownBugPatterns.some(pattern => pattern.test(err.message))) {
       const message = Common.UIString(
-          'Try to navigate to the URL in a fresh Chrome profile without any other tabs or ' +
-          'extensions open and try again.');
+          'Try to navigate to the URL in a fresh Chrome profile without any other tabs or extensions open and try again.');
       this._statusText.createChild('p').createTextChild(message);
     } else {
       this._renderBugReportBody(err, this._inspectedURL);