Description of problem:
debuginfo-install doesn't recognize epoch in given package name and it doesn't install anything.

Version-Release number of selected component (if applicable):
yum-utils-1.1.19-1.fc10.noarch

How reproducible:
Steps to Reproduce:
1. $ debuginfo-install mc-1:4.6.2-7.pre1.fc10
  
Actual results:
No debuginfo packages available to install

Expected results:
debuginfo is installed

Additional info:
$ debuginfo-install mc-4.6.2-7.pre1.fc10 works. It seems that debuginfo-install doesn't recognize epoch in "n-e:v-r" package name format.