Use parallel installcheck in vcregress.pl's upgrade test

Andrew Dunstan <andrew@dunslane.net>

Commit: 54ad7282fe7ad80a15533546d3b0a2be2e19e3f6
Author: Andrew Dunstan <andrew@dunslane.net>
Date: 2018-11-07T19:17:57Z
Releases: 12.0
Use parallel installcheck in vcregress.pl's upgrade test

This is to keep the test in sync with what's done in test.sh, which
acquired this change in commit da906766c.

Files

PathChange+/−
src/tools/msvc/vcregress.pl modified +1 −1