Merge branch 'bw/submodule-helper-usage-fix'

Typofix. * bw/submodule-helper-usage-fix: builtin/submodule--helper: fix usage string for 'update-clone'

Junio C Hamano committed Oct 7, 2019 at 11:33 UTC 417056578a76f87f8175c7b315e35ca2fb92a0aa

No changes.