A commit message should have:
 
-*:The GitTrac ticket number, in the form #123.  Note that you cannot have a "#" at the start of a line; Git will think it's a comment.  Common techniques include putting the comment at the end of the line, or enclosing it in parenthesis like (#123).  If multiple tickets are involved, feel free to list them all.  If zero tickets are involved, consider creating a ticket so people have a place to discuss the change and a convenient place to point to for all relevant information.
+*:See GlissTool for a discussion of information that can/should be packed into the commit message in the form of glisses.
+
+*:The GitTrac ticket number, in the form #123.  Note that you cannot have a "#" at the start of a line; Git will think it's a comment.  Common techniques include putting the comment at the end of the line, or enclosing it in parenthesis like (#123), or putting it in a gliss.  If multiple tickets are involved, feel free to list them all.  If zero tickets are involved, consider creating a ticket so people have a place to discuss the change and a convenient place to point to for all relevant information.
 *:: Why? This number makes correlating the version history easier (assuming you include the ticket number in a comment in the version history like you should).  It also means that the ticket can include links to the relevant commits.
 
 *:A brief description of what you changed.