Files can no longer be saved on Google Drive.
The bug was introduced in 0398e1e3.

Google Drive may have user name in the form:
name.surname@domain.com
In some places the user name should be escaped before using it.

Change-Id: Idee3e57c0ad1dcbbd517b60c387868bfc706f27e
Reviewed-on: https://gerrit.libreoffice.org/21198Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: jan iversen <jani@documentfoundation.org>
Tested-by: jan iversen <jani@documentfoundation.org>
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>