How to Write a Git Commit Message

The seven rules of a great git commit message

Keep in mind: This has all been said before.

• Separate subject from body with a blank line
• Limit the subject line to 50 characters
• Capitalize the subject line
• Do not end the subject line with a period
• Use the imperative mood in the subject line
• Wrap the body at 72 characters
• Use the body to explain what and why vs. how

From http://chris.beams.io/