71733c3 PR#5851: refine 4.02@15111 to print the hint at most once

Authored and Committed by Gabriel Scherer 9 years ago
    PR#5851: refine 4.02@15111 to print the hint at most once
    
    (Report by Jonathan Protzenko, ack'ed by Damien Doligez)
    
    git-svn-id: http://caml.inria.fr/svn/ocaml/version/4.02@15127 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02
    
        
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