tracker-control: Use g_settings_sync() to make sure all settings are stored
tracker-control: Use g_settings_sync() to make sure all settings are stored

--set-log-verbosity was not always working as expected

outofbits/tracker,hoheinzollern/tracker,hoheinzollern/tracker,outofbits/tracker,outofbits/tracker,outofbits/tracker,outofbits/tracker,hoheinzollern/tracker,outofbits/tracker,hoheinzollern/tracker,hoheinzollern/tracker,hoheinzollern/tracker,outofbits/tracker,hoheinzollern/tracker