cb524aa23a
Add the need to have a commit message with a specific format to the contributing guidelines. Provide a script to help enforce commit message style. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: George Melikov <mail@gmelikov.ru> Signed-off-by: Giuseppe Di Natale <dinatale2@llnl.gov> Closes #5943