[tracker/sam/ci-fix-fedora-31] ci: Fix tests with Fedora 31 container image

[Sam Thursfield <sthursfield src gnome org>]

commit 7108ccd98bcc3bceab261a27a4d4aae3e8da806d
Author: Sam Thursfield <sam afuera me uk>
Date:   Wed Dec 11 15:06:59 2019 +0100

    ci: Fix tests with Fedora 31 container image

 .gitlab-ci.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 0616811d8..53e99055d 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -30,7 +30,7 @@ test-fedora-latest:
       # We limit `meson test` to 4 parallel test processes. The default is to
       # have one test process per CPU, but our tests are mostly IO bound
       # and we get timeouts and failures if we try to run 32 of them at once.
-      su tracker -c 'cd build; meson test --num-processes=4 --print-errorlogs ${MESON_TEST_EXTRA_ARGS}'
+      su tracker -c 'cd build; env LANG=C LC_ALL=C meson test --num-processes=4 --print-errorlogs 
${MESON_TEST_EXTRA_ARGS}'
 
   after_script:
     - |