[gjs: 1/2] CI: fix a bug in the test script

[Gitlab Administrative User <gitlab src gnome org>]

commit 89909a09880783c44efca0ef7e27059c9f00faf0
Author: Claudio André <claudioandre br gmail com>
Date:   Tue Nov 7 15:18:36 2017 -0200

    CI: fix a bug in the test script
    
    It was not checking properly when the environment should be changed.

 test/test-ci.sh | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/test/test-ci.sh b/test/test-ci.sh
index ab4c34e..decfd92 100755
--- a/test/test-ci.sh
+++ b/test/test-ci.sh
@@ -81,11 +81,11 @@ function do_Set_Env(){
     export XDG_CACHE_HOME=/cwd/.cache
     export JHBUILD_RUN_AS_ROOT=1
 
-    if [[ -z $DISPLAY ]]; then
+    if [[ -z "${DISPLAY}" ]]; then
         export DISPLAY=":0"
     fi
 
-    if [[ -n "$SHELL" ]]; then
+    if [[ -z "${SHELL}" || $BASE == "ubuntu" ]]; then
         export SHELL=/bin/bash
     fi