tree 90553fbf641557d8e6b762f14fb0f778f8db3233
parent 7535d4c8c9bd98743446ee293796e4b938770705
author Keith Smiley <keithbsmiley@gmail.com> 1573652607 -0800
committer Copybara-Service <copybara-worker@google.com> 1573652667 -0800

Hardcode path to dirname on macOS

It seems that some repos have customized PATH so this isn't available.
This should fix that.

Closes #10222.

PiperOrigin-RevId: 280180002