pgsql: Fix msvc build for localized versions of Visual C++

Fix msvc build for localized versions of Visual C++

Look only at the non-localized part of the output from "vcbuild /?",
which is used to determine the version of Visual Studio in use. Different
languages seem to localize different amounts of the string, but we assume
the part "Microsoft Visual C++" won't be modified.

Branch
------
REL9_0_STABLE

Details
-------
http://git.postgresql.org/gitweb?p=postgresql.git;a=commitdiff;h=eed33cdd83a6f8693c40268adc39d6d65fff8b23

Modified Files
--------------
src/tools/msvc/Solution.pm |    2 +-
1 files changed, 1 insertions(+), 1 deletions(-)