Hello,
When you want to change CDROM, and you have 2 files in the directory called
mandriva-linux-2008.0-free-rc2-CD1.i586.iso and
mandriva-linux-2008.0-free-rc2-CD2.i586.iso, you have to enter
mandriva-linux-2008.0-free-rc2-CD2 by hand and only get completion on
.i586.iso which is not really helpful.

The attached patch gets the common prefix so that you can do man<TAB>2<TAB>