And for any OS X user (* BSD based sed)

  curl -s programmerexcuses.com | sed -n -e '/<a.*>/{s/<[^>]*>//g;' -e 'p' -e '}'

  git commit -m "$(curl -s programmerexcuses.com | sed -n -e '/<a.*>/{s/<[^>]*>//g;' -e 'p' -e '}')"

Or you can use it in your post-commit hook:

https://gist.github.com/stevelaz/daecc32e0a8f2758b649

www.whatthecommit.com alternative to this:

  git commit -m "$(curl -s http://whatthecommit.com | grep -o '<p>.*' | sed 's|<[^>]*>||g')"