[gnome-settings-daemon] tests: Fix dbus warning in tests

[Bastien Nocera <hadess src gnome org>]

commit b1bf0aad346471758e2542793e23ae25e9d31c2e
Author: Bastien Nocera <hadess hadess net>
Date:   Fri Jan 19 16:23:37 2018 +0100

    tests: Fix dbus warning in tests
    
    Set a more restrictive mode than the default to avoid a warning at
    runtime:
    dbus[28036]: Unable to set up transient service directory: XDG_RUNTIME_DIR 
"/tmp/gsd-power-testF7oXJo/runtime" can be written by others (mode 040775)

 tests/gsdtestcase.py |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/tests/gsdtestcase.py b/tests/gsdtestcase.py
index deb4992..c5ba2d0 100644
--- a/tests/gsdtestcase.py
+++ b/tests/gsdtestcase.py
@@ -70,7 +70,7 @@ class GSDTestCase(dbusmock.DBusTestCase):
 
         # work around https://bugzilla.gnome.org/show_bug.cgi?id=689136
         os.makedirs(os.path.join(os.environ['XDG_CONFIG_HOME'], 'dconf'))
-        os.makedirs(os.environ['XDG_RUNTIME_DIR'])
+        os.makedirs(os.environ['XDG_RUNTIME_DIR'], mode=0o700)
 
         klass.start_system_bus()
         klass.start_session_bus()