Bump version to 2.22.1.

portlint.pl

@@ -52,7 +52,7 @@ $portdir = '.';
 # version variables
 my $major = 2;
 my $minor = 22;
-my $micro = 0;
+my $micro = 1;
 
 # default setting - for FreeBSD
 my $portsdir = '/usr/ports';