pgsql: Handle spaces for Python install location in MSVC scripts

Handle spaces for Python install location in MSVC scripts

Attempting to use an installation path of Python that includes spaces
caused the MSVC builds to fail. This fixes the issue by using the same
quoting method as ad7595b for OpenSSL.

Author: Victor Wagner
Discussion: /messages/by-id/20200430150608.6dc6b8c4@antares.wagner.home
Backpatch-through: 9.5

Branch
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REL9_6_STABLE

Details
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https://git.postgresql.org/pg/commitdiff/e07fdc126ef3c75dedd279f87c3be6e8eed5543d

Modified Files
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src/tools/msvc/Mkvcbuild.pm | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)