ObtainUserAgentString returns the currently set (custom) user agent unless
the version requested is a valid one (7, 8, ... 11, or 7 | UAS_EXACTLEGACY),
in which case it uses that version to build the user agent.
Signed-off-by: Gabriel Ivăncescu <gabrielopcode@gmail.com>
Signed-off-by: Jacek Caban <jacek@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>