Not parsing git commit log on macOS

[RobSmyth]

Describe the bug
Reports unable to parse git log when running on macOS.

This bug arises from the Git2SemVer.MSBuild issue: NoeticTools/Git2SemVer.MSBuild/issues#35

To Reproduce
Steps to reproduce the behavior:

1. On macOS create a project referencing Git2SemVer.MSBuild/2.0.1-alpha.589.
2. Make at least one commit.
3. Compile ... the compile will fail with an error "Git2SemVerGitOperationException: Unable to get commits."

Screenshots
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Version (please complete the following information):
Git2SemVer.MSBuild/2.0.1-alpha.589

Environment (please complete the following information):

• OS: macOS

Additional context
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