$ cat >> $HGRCPATH << EOF > [extensions] > fastannotate= > EOF $ hg init repo $ cd repo changes to whitespaces $ cat >> a << EOF > 1 > > > 2 > EOF $ hg commit -qAm '1' $ cat > a << EOF > 1 > > 2 > > > 3 > EOF $ hg commit -m 2 $ hg fastannotate -wB a 0: 1 0: 1: 2 0: 1: 1: 3