[gnome-builder] subprocess: export LANG when environment is cleared

[Christian Hergert <chergert src gnome org>]

commit 9370d663db7a4f3964102fe30326a419c6cca10a
Author: Christian Hergert <chergert redhat com>
Date:   Sun Mar 12 17:07:35 2017 -0700

    subprocess: export LANG when environment is cleared
    
    We need access to this so that some tooling can determine utf8 properly.

 libide/subprocess/ide-subprocess-launcher.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/libide/subprocess/ide-subprocess-launcher.c b/libide/subprocess/ide-subprocess-launcher.c
index e57ad4c..4028f8a 100644
--- a/libide/subprocess/ide-subprocess-launcher.c
+++ b/libide/subprocess/ide-subprocess-launcher.c
@@ -275,6 +275,7 @@ ide_subprocess_launcher_spawn_worker (GTask        *task,
       ide_subprocess_launcher_setenv (self, "PATH", "/bin:/usr/bin", FALSE);
       ide_subprocess_launcher_setenv (self, "HOME", g_get_home_dir (), FALSE);
       ide_subprocess_launcher_setenv (self, "USER", g_get_user_name (), FALSE);
+      ide_subprocess_launcher_setenv (self, "LANG", g_getenv ("LANG"), FALSE);
     }
 
   {