[gnome-builder] preferences: add a comment for translators

[Sébastien Lafargue <slafargue src gnome org>]

commit 96f39c991bb8602590be7e335a127a0883a70950
Author: Sebastien Lafargue <slafargue gnome org>
Date:   Sun Sep 18 22:30:33 2016 +0200

    preferences: add a comment for translators

 libide/preferences/ide-preferences-builtin.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/libide/preferences/ide-preferences-builtin.c b/libide/preferences/ide-preferences-builtin.c
index 02ee15f..f6b0c8a 100644
--- a/libide/preferences/ide-preferences-builtin.c
+++ b/libide/preferences/ide-preferences-builtin.c
@@ -258,6 +258,7 @@ ide_preferences_builtin_register_languages (IdePreferences *preferences)
   ide_preferences_add_group (preferences, "languages", "search", NULL, 0);
 
   search = g_object_new (GTK_TYPE_SEARCH_ENTRY,
+                         /* translators: placeholder string for the entry used to filter the languages in 
Preferences/Programming languages */
                          "placeholder-text", _("Search languages…"),
                          "visible", TRUE,
                          NULL);