Git commit message thingy

This is probably git 101, but if you intend to write a multi-line
commit message, you *need* to separate the first line with a blank
line from the rest. So don't write:

[tests] This patch fixes:
* Bug in scripting test
* Build error when corba ain't used.

But write:
[tests] This patch fixes:

* Bug in scripting test
* Build error when corba ain't used.

That's because all git porcelain commands that work with patches in
emails assume that a blank line separates subject from body. It has
bitten me many times and it makes ugly (all on one line) commit
messages when integrating wrongly formatted patches.

Peter