Log Message:
Update to 1.322

Upstream changes:
1.322 2018-04-21 BOOK
    [DOCUMENTATION]
    - Detail what Git::Repository::Command does to the environment
    [TESTS]
    - Match new error message format in git 2.17. (HMBRAND and JANPAZ)
    - Fixed the 'git-collection' link for extended ("all gits") tests