Change `*prfile` to `*pfile`

]<C-Q> works great for me, but [<C-Q> complains:

    E492: Not an editor command: cprfile

:cpfile is valid but :cprfile is not so `[<C-Q>` wasn't working.

Also you were right about flow control... I did need to disable it before I could use <C-q> in terminal vim.