[PATCH] limit commit message to 500 lines (was: Please, do not use the merged revisions log as the commit message when merging)

[Paolo Bonzini]

> r76701 | amylaar | 2004-01-27 13:49:31 +0100 (Tue, 27 Jan 2004) | 2915 lines
> r55189 | amylaar | 2002-07-02 20:45:49 +0200 (Tue, 02 Jul 2002) | 684 lines
> r43861 | kenner | 2001-07-09 13:20:51 +0200 (Mon, 09 Jul 2001) | 980 lines

These were mistakes, and it's the only three I checked.  100% rate. :-)

Paolo