${VERSION%.*} in DETAILS - Was - Re: [Lunar-commits] <moonbase> Twisted: Version bumped to 11.0.0 + DETAILS fixes

[Duncan Gibson]

> commit 664876b61b7bdf66f905e8d84aa616ba28fea7ee
> Author: Stefan Wold <ratler at lunar-linux.org>
> Date:   Wed Jun 15 08:45:05 2011 +0200
>
>     Twisted: Version bumped to 11.0.0 + DETAILS fixes
>
>     - Refrain from using $MAJOR approach, it's not compatible with lin -w

>  python/Twisted/DETAILS |   11 +++++------
> +     VERSION=11.0.0
> +  SOURCE_URL=http://twistedmatrix.com/Releases/$MODULE/${VERSION%.*}

I read the bash man page on ${parameter%word} but I'm not really any
wiser on what the substitution could potentially expand to and match.
Any chance of a "Bash for Dummies" explanation on what this will do?

Also, like sofar's fix in theedge that will remove the need for $C_FIFO,
is the plan to replace:

  a) all use of $MAJOR,
  b) all use of $VERSION in the SOURCE_URL with ${VERSION%.*}

throughout the complete moonbase?

Cheers
D.