Your small code sample has no violations using the default settings on Perl::Critic. However, you can turn up the severity, and start to get complaints. I am more familiar with the perlcritic command line tool: 
$ perlcritic -1 critic
Code is not tidy at line 1, column 1.  See page 33 of PBP.  (Severity:
+ 1)
Use Emacs file variables to declare coding style at line 1, column 1. 
+ Emacs can read per-file settings.  (Severity: 2)
RCS keywords $Id$ not found at line 1, column 1.  See page 441 of PBP.
+  (Severity: 2)
RCS keywords $Revision$, $HeadURL$, $Date$ not found at line 1, column
+ 1.  See page 441 of PBP.  (Severity: 2)
RCS keywords $Revision$, $Source$, $Date$ not found at line 1, column 
+1.  See page 441 of PBP.  (Severity: 2)
Missing Perl version at line 1, column 1.  Add "use 5.006" or similar.
+  (Severity: 1)
No package-scoped "$VERSION" variable found at line 1, column 1.  See 
+page 404 of PBP.  (Severity: 2)
Return value of flagged function ignored - print at line 11, column 1.
+  See pages 208,278 of PBP.  (Severity: 1)

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Your results may vary depending on the version of Perl::Critic (I also have additional policies loaded on my system).

UPDATE: Why didn't you pass a filename on the command line to your critic program? $file has not been assigned a value.

Also, to set the severity in your critic program: 

my $critic = Perl::Critic->new(-severity=>1);

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In reply to Re^3: perlcritic & test files by toolic
in thread perlcritic & test files by Bor

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