# Given.
confess "Insufficent data in X from {hash lookup} through {hash lookup
+} source data file {hash lookup}" unless {condition};

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I prefer sprintf when there are more than 1 or 2 simple variables are involved. Using sprintf sans () with post condition check is awkward, so used or. I would use map or hash slice if the 3 instances refer to the same hash (reference). First argument to sprintf would be on single line. 

{condition} or
  confess sprintf "Insufficient data in X from %s through %s source da
+ta file %s"
  , {hash lookup}
  , {hash lookup}
  , {hash lookup} ;

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In reply to Re^3: 78/80 chars perl line still a meaningful rule by Anonymous Monk
in thread 78/80 chars perl line still a meaningful rule by McA

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