[Svnmerge] version number

[Giovanni Bajo]

Hello,

svnmerge.py --version currently prints the revision number of the
repository. This is quite useful, but it is incomplete, since there are also
svnmerge.py from the branches. If --version does not print whether the
source code was taken from a branch or the trunk, it gets impossible to
compare different versions.

I was thinking of using $URL$  and some regexp parsing so to display
something like:

svnmerge r19802 (trunk)
svnmerge r19768 (branch 1.4.x)

Comments?
-- 
Giovanni Bajo