git log question

commit() {
  sleep 1
  git commit -m "$1" >/dev/null
  git log -n 1 --pretty="Committed: %H ($(git branch --show-current)) %s"
}

modify() {
  mv $1 $1.copy
  cat $1.copy | sed -e "$2s/.*/$3/" > $1
  rm $1.copy
  git add .
  commit "Modified line $2 of $1."
}

dummy_commits() {
  touch dummy.txt
  git add .
  commit "Added dummy.txt"
  git rm dummy.txt >/dev/null
  commit "Removed dummy.txt"
}

repo="$(mktemp -d)"
echo "Created git repository at $repo"
cd "$repo"
git init &>/dev/null
cat >foo.txt <<HERE
This is line 1
This is line 2
This is line 3
This is line 4
This is line 5
This is line 6
This is line 7
This is line 8
This is line 9
This is line 10
HERE
git add .
commit "Initial commit"
git checkout -b workbench 2>/dev/null
mv foo.txt bar.txt
git add .
commit "Renamed foo.txt to bar.txt"
modify bar.txt 3 "Modified bar"
dummy_commits
git checkout master 2>/dev/null
mv foo.txt baz.txt
git add .
commit "Renamed foo.txt to baz.txt"
modify baz.txt 8 "Modified baz"
dummy_commits
git merge workbench -m "Merging workbench (conflicts)" >/dev/null
rm baz.txt
mv bar.txt foo-merged.txt
git add .
commit "Merged bar.txt and baz.txt as foo-merged.txt"

# ----- Output Stats ------ #
echo "----------------------------------------"
git log --raw --follow -m --pretty=format:%H%n%P%n%aL%n%cs%n%s -- foo-merged.txt
echo "----------------------------------------"
git blame -elfwM --root --date=short foo-merged.txt