diffstat: with --git, mark binary files with Bin
Normally, diffs without any text insertions or deletions are reported
as having 0 lines changed by stock diffstat. Compatibility is
preserved with stock diffstat in this case, but when using --git,
binary files are marked with Bin as a means of clarification.
git diff --stat does something similar, though it also includes the
old and new file sizes.
% extracting documentation from C
checking for parse errors with rst2html
% extracting documentation from da
checking for parse errors with rst2html
% extracting documentation from de
checking for parse errors with rst2html
% extracting documentation from el
checking for parse errors with rst2html
% extracting documentation from fr
checking for parse errors with rst2html
% extracting documentation from it
checking for parse errors with rst2html
% extracting documentation from ja
checking for parse errors with rst2html
% extracting documentation from pt_BR
checking for parse errors with rst2html
% extracting documentation from sv
checking for parse errors with rst2html
% extracting documentation from zh_CN
checking for parse errors with rst2html
% extracting documentation from zh_TW
checking for parse errors with rst2html