tree 553292a83cf5a0f5302b05346ff70d51cefa8768
parent de08462b17adaf3e22656761abaf28d545d64bab
author Sam Clegg <sbc@chromium.org> 1595696884 -0700
committer Sam Clegg <sbc@chromium.org> 1595710185 -0700

Remove error duplication around missing git executable

Make git a requirement for fetch_emscripten_tags but in the case
when we run it from "emsdk update" we can check for git first.

This cleans up fetch_emscripten_tags and removed the duplication
of the git-missing error messages.