(14:32) [tyler@atlas ~]$ sudo portmaster -o lang/perl5.20 lang/perl5.18
===>>> Port directory: /usr/ports/lang/perl5.20
===>>> Gathering distinfo list for installed ports
===>>> Launching 'make checksum' for lang/perl5.20 in background
===> Building/installing dialog4ports as it is required for the config dialog
===> Cleaning for dialog4ports-0.1.5_2
===> Skipping 'config' as NO_DIALOG is defined
/usr/ports/Mk/Scripts/check-vulnerable.sh: dp_PKGNAME: parameter not set
*** Error code 2
Stop.
make[3]: stopped in /usr/ports/ports-mgmt/dialog4ports
*** Error code 1
Stop.
make[2]: stopped in /usr/ports/ports-mgmt/dialog4ports
===> Options unchanged
===>>> Gathering dependency list for lang/perl5.20 from ports
===>>> Initial dependency check complete for lang/perl5.20
===>>> Starting build for lang/perl5.20 <<<===
===>>> All dependencies are up to date
===> Cleaning for perl5-5.20.3_13
===> Building/installing dialog4ports as it is required for the config dialog
===> Cleaning for dialog4ports-0.1.5_2
===> Skipping 'config' as NO_DIALOG is defined
/usr/ports/Mk/Scripts/check-vulnerable.sh: dp_PKGNAME: parameter not set
*** Error code 2
Stop.
make[3]: stopped in /usr/ports/ports-mgmt/dialog4ports
*** Error code 1
Stop.
make[2]: stopped in /usr/ports/ports-mgmt/dialog4ports
===> Options unchanged
/usr/ports/Mk/Scripts/check-vulnerable.sh: dp_PKGNAME: parameter not set
*** Error code 2
Stop.
make[1]: stopped in /usr/ports/lang/perl5.20
*** Error code 1
Stop.
make: stopped in /usr/ports/lang/perl5.20
===>>> make build failed for lang/perl5.20
===>>> Aborting update
===>>> You can restart from the point of failure with this command line:
portmaster <flags> lang/perl5.20