Ticket 49177 - rpm would not create valid pkgconfig files
    
    Bug Description:  pkgconfig from the rpm was not valid.
    
    Fix Description:  Resolve an issue in the way we handle the file
    substiution to resolve this issue.
    
    https://pagure.io/389-ds-base/issue/49177
    
    Author: wibrown
    
    Review by: mreynolds (Thanks!)