(Aside - this is the second completely trivial "bug report" I've sent in today. I wonder if there should be another way of reporting bugs like this so that the reports don't bother anyone apart from the GHC maintainers?) The GHC users's guide (section in ghc/docs/users_guide/libmisc.vsgml) refers to a function mkRegEx in the module RegexString. However this actually appears to be called "mkRegex".
