t / t5100 / rfc2047-info-0004on commit git: treat "git -C '<path>'" as a no-op when <path> is empty (6a536e2)
   1Author: Nathaniel Borenstein (םולש ןב ילטפנ)
   2Email: nsb@thumper.bellcore.com
   3Subject: Test of new header generator
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