[babl] babl-cache: fix mk_ancestry to return 0 when behaving properly

[Øyvind Kolås <ok src gnome org>]

commit e664a228622ec470454ce2f6512525251463ca40
Author: Øyvind Kolås <pippin gimp org>
Date:   Wed Nov 30 01:43:45 2016 +0100

    babl-cache: fix mk_ancestry to return 0 when behaving properly

 babl/babl-cache.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/babl/babl-cache.c b/babl/babl-cache.c
index 239bb16..c8a5dbd 100644
--- a/babl/babl-cache.c
+++ b/babl/babl-cache.c
@@ -51,7 +51,7 @@ mk_ancestry_iter (const char *path)
             }
         }
     }
-  return -1;
+  return 0;
 }
 
 static int