NIM provider uses a regex that is too restrictive when parsing RPM release tags

The NIM provider uses a regex that is too restrictive when parsing RPM release tags, it only allows numbers. For example if a package has a security release that includes letters it will fail to recognize it as a valid package name.
The package "wget-1.9.1-2ssl" gives the error: "Unable to parse output from nimclient showres: package string does not match expected rpm package string format"