FindGit: Avoid finding VS 2017 non-general Git installation
At a VS 2017 command prompt the PATH
contains a directory that happens
to have a Git/cmd/git.exe
inside it. However, this executable is not
meant for general use. Revise our use of Git/
path suffixes to be
more specific to its original purpose of searching in the typical
c:/Program Files*/Git/
installation directories. Avoid using the
suffixes on PATH
entries.
Fixes: #16706 (closed)