The rationale is to be consistent with other operating systems, all of which
print a version number following their name (possibly in parenthesis if the
version is typically non-numeric as is always the case with OS X so far and
has been with Windows).
The version number printed here is only two digits, both for consistency with
OS X and because the first two digits of an operating systems's version are
typically the limit in marketing materials and general presentation.
This also fixes a bug where the returned string would be "Windows " (note the
space) in the case where the name of a future Windows version was not known.
[ChangeLog][QtCore][QSysInfo] The output of QSysInfo::prettyProductName
now includes the Windows OS/kernel version number. In case of future versions
of Windows, a valid string is now returned.
Change-Id: I588c2e0aaae19337eb69b4645f8bccf8270c75bc
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>