[babl] build: do tests last, for better make check output

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

commit 3eea09b6b04092c3e0939d9bee424ff8b940e250
Author: Øyvind Kolås <pippin gimp org>
Date:   Wed Dec 5 03:36:50 2018 +0100

    build: do tests last, for better make check output

 Makefile.am | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/Makefile.am b/Makefile.am
index ffa9645..4e6cdda 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -3,8 +3,8 @@ ACLOCAL_AMFLAGS = -I m4 ${ACLOCAL_FLAGS}
 SUBDIRS = \
        babl            \
        extensions      \
-       tests           \
-       tools
+       tools           \
+       tests
 
 if ENABLE_DOCS
 SUBDIRS+= docs