[travis] Stabilize spatialite tests

Author: m-kuhn

tests/src/python/test_provider_spatialite.py

@@ -37,8 +37,8 @@
 
 from qgis.utils import spatialite_connect
 
-# Pass no_exit=True: for some reason this crashes on exit on Travis MacOSX
-start_app(sys.platform != 'darwin')
+# Pass no_exit=True: for some reason this crashes sometimes on exit on Travis
+start_app(True)
 TEST_DATA_DIR = unitTestDataPath()