[mutter] ci: Make MALLOC_PERTURB_ less random

[Jonas Ådahl <jadahl src gnome org>]

commit e8bca5052a704620e8f6283210d33f96a99f2299
Author: Jonas Ådahl <jadahl gmail com>
Date:   Fri May 24 09:18:34 2019 +0200

    ci: Make MALLOC_PERTURB_ less random
    
    The point is to not initialize to some non-zero value to find places
    incorrectly relying on blocks being zero initialized. Thus, there is no
    reason to have a different random number each time, and by having it the
    same, we have slightly more reproducable triggers, would we ever trigger
    anything due to this.
    
    https://gitlab.gnome.org/GNOME/mutter/merge_requests/591

 .gitlab-ci.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 20387db41..6cb0b9b48 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -37,12 +37,12 @@ test-mutter:
     GSETTINGS_SCHEMA_DIR: "$CI_PROJECT_DIR/build/data"
     MALLOC_CHECK_: "3"
     NO_AT_BRIDGE: "1"
+    MALLOC_PERTURB_: "123"
   script:
     - dconf update
     - mkdir -m 700 $XDG_RUNTIME_DIR
     - glib-compile-schemas $GSETTINGS_SCHEMA_DIR
     - >
-      env MALLOC_PERTURB_="$((RANDOM % 256 + 1))"
       dbus-run-session -- xvfb-run -s '+iglx -noreset'
       meson test -C build --no-rebuild -t 10 --verbose --no-stdsplit --wrap catchsegv
   only: