Re: [PATCH 1/3] GIT-VERSION-GEN: make use of git describe --dirty

Mathias Lafeldt wrote:

Currently, GIT-VERSION-GEN invokes the plumbing commands "git update-index" and
"git diff-index" to determine if the working tree is dirty. It then appends
"-dirty" to the version string returned by "git describe".

However, as of Git v1.6.6, "git describe" can be told to do all that with the
"--dirty" option, saving us the plumbing.

This has a minor downside, which is avoiding the nice version numbers when
building Git with git 1.5.6 installed.  What is the upside?