pepper git backend doesn't use the .mailmap file

[wald-tq]

pepper git backend doesn't use the .mailmap file.

Therefore we see wrong names in the charts.

.mailmap is a git feature to fix the different spellings for the author. In the standard git log you can enable it with --use-mailmap

or configure it with:

git config --global log.mailmap true

pepper ignores the setting.

[jgehring]

This is a good idea! The git backend uses git-rev-list from plumbing, so the information from .mailmap is not pulled in automatically.