Code before strictures are enabled at line 2, column 1.  See page 429 of PBP.  (Severity: 5)
Code before warnings are enabled at line 2, column 1.  See page 431 of PBP.  (Severity: 4)
Two-argument "open" used at line 99, column 4.  See page 207 of PBP.  (Severity: 5)
Return value of "close" ignored at line 112, column 4.  Check the return value of "close" for success.  (Severity: 2)
Two-argument "open" used at line 119, column 4.  See page 207 of PBP.  (Severity: 5)
Expression form of "eval" at line 160, column 7.  See page 161 of PBP.  (Severity: 5)