mergeinfo --show-revs eligible (is there a shorthand?)

Is there a short-hand for listing eligible revisions in a mergeinfo query?

To avoid expensive (sometimes several minutes on <1.7) empty merge
calls, it is handy to find out whether merge would actually do
anything - the current command-line is pretty verbose for the task
though (needless to say I've wrapped it up in a script).

         svn mergeinfo --show-revs eligible ^^/...

Would a short-hand be out of the question?

         svn mergeinfo --eligible ^^/...

Or maybe even an alias command ala bazaar.

         svn alias "eligible=mergeinfo --show-revs eligible"
         svn eligible ^^/...

(I'd probably call it 'missing' myself since it lists missing
revisions and I'm used to that in another tool - guess which one)

--
Talden