Print policy name in perlcritic messages

This makes it easier to do a web search for details of the policy that's
been violated, as well as displaying the name that might be needed for a
policy override.

Various perlcritic settings changes are being discussed, but this one
should be uncontroversial.

Author: adunstan

src/tools/perlcheck/perlcriticrc

@@ -10,6 +10,12 @@ severity = 5
 
 theme = core
 
+# print the policy name as well as the normal output
+verbose = %f: %m at line %l, column %c.  %e.  ([%p] Severity: %s)\n
+
+# Note: for policy descriptions see https://metacpan.org/release/Perl-Critic
+
+
 # allow octal constants with leading zeros
 [-ValuesAndExpressions::ProhibitLeadingZeros]