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   DUPLOOK()                Search for duplicate fields
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     Usage         Duplook()
     Param         None  - interactive - contains menu system
     Example       ...
                   use Customer index Customer
                   Duplook()
                   ...

     Notes         Interactive field selection - count and display
                   records where indicated fields are duplicates
                   This one also needs some enhancements. Again, I'm
                   open to suggestions.
                   Builds an index called dupchk.

     INTERNAL FUNCTIONS:
      FIG_DUP()         SAYDLIST()