Merge Git for Windows v2.30.2

This is a "fake" merge, i.e. it does not take any changes from that tag,
but makes it part of the commit history. The changes will come in as
part of rebasing onto v2.31.0-rc2 (which includes v2.30.2).

Signed-off-by: Johannes Schindelin <[email protected]>

Author: dscho