[gnome-shell] perf: Shut up an eslint error

[Georges Basile Stavracas Neto <gbsneto src gnome org>]

commit fda7c9b06e618bd32d4335e673a6efa3b09482b7
Author: Florian Müllner <fmuellner gnome org>
Date:   Mon Feb 4 13:14:09 2019 +0100

    perf: Shut up an eslint error
    
    The while(true) loop is intentional here and not a bug, so disable
    the corresponding eslint rule.
    
    https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/627

 js/perf/hwtest.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/js/perf/hwtest.js b/js/perf/hwtest.js
index e74ba25ac..9c3c620fd 100644
--- a/js/perf/hwtest.js
+++ b/js/perf/hwtest.js
@@ -82,7 +82,7 @@ function extractBootTimestamp() {
     let result = null;
 
     let datastream = Gio.DataInputStream.new(sp.get_stdout_pipe());
-    while (true) {
+    while (true) { // eslint-disable-line no-constant-condition
         let [line, length_] = datastream.read_line_utf8(null);
         if (line === null)
             break;