[babl] babl: do not load cache if BABL_INHIBIT_CACHE is set in environment

[Øyvind "pippin" Kolås <ok src gnome org>]

commit 1dad45b5ea68145f742d1a1ab320b24fe16c5a1f
Author: Øyvind Kolås <pippin gimp org>
Date:   Thu Jan 27 05:38:47 2022 +0100

    babl: do not load cache if BABL_INHIBIT_CACHE is set in environment

 babl/babl.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
---
diff --git a/babl/babl.c b/babl/babl.c
index 515fa09b0..141396f9b 100644
--- a/babl/babl.c
+++ b/babl/babl.c
@@ -158,7 +158,8 @@ babl_init (void)
       babl_extension_load_dir_list (dir_list);
       babl_free (dir_list);
 
-      babl_init_db ();
+      if (!getenv ("BABL_INHIBIT_CACHE"))
+        babl_init_db ();
     }
 }