bff3f43 use Env.scrape_alias in Envaux too

Authored and Committed by Jacques Garrigue 9 years ago
    use Env.scrape_alias in Envaux too
    
    git-svn-id: http://caml.inria.fr/svn/ocaml/version/4.02@15135 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02
    
        
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