[glib/1416-macos-ci] Update .gitlab-ci.yml

[Xavier Claessens <xclaesse src gnome org>]

commit 938f41669f4445fd8a3ef5f2cc71e9e6c75b895c
Author: Xavier Claessens <xclaesse gmail com>
Date:   Fri Jan 3 16:46:58 2020 +0000

    Update .gitlab-ci.yml

 .gitlab-ci.yml | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 2a4b5b73d..e4b92ae5c 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -327,9 +327,8 @@ macos:
   tags:
     - macos
   before_script:
-    - which python
-    - which python3
-    - which pip
+    - python --version
+    - pip --version
     - which meson || pip3 install meson==0.49.2
   script:
     # FIXME: Add --werror