sysutils/backuppc4: Update to 4.1.2

[dbaio]

Summary

sysutils/backuppc4: Update to 4.1.2

Changes: https://github.com/backuppc/backuppc/releases/tag/4.1.2

PR:	219020
Submitted by:	Alexander Moisseev <[e-mail]> (maintainer)
Approved by:	garga (mentor)
Differential Revision:	https://reviews.freebsd.org/D10978

Test Plan

$ portlint -C
WARN: Makefile: possible use of absolute pathname "/var/db/BackupPC".
0 fatal errors and 1 warning found.

poudriere testport:

10.3-RELEASE-p19 amd64
10.3-RELEASE-p19 i386
11.0-RELEASE-p10 amd64
11.0-RELEASE-p10 i386
12.0-CURRENT r318689 amd64
12.0-CURRENT r318690 i386

===========================================================================
====> Running Q/A tests (stage-qa)
Warning: www/p5-CGI was in Perl CORE.  Check with `corelist CGI 0` and `corelist -a CGI` if it should be conditionally added depending on PERL_LEVEL
Notice: You have some Perl modules as dependencies but you do not have devel/p5-Module-CoreList installed, the perlcore QA check gets better results when using it, especially with older Perl versions.
====> Checking for pkg-plist issues (check-plist)
===> Parsing plist
===> Checking for items in STAGEDIR missing from pkg-plist
===> Checking for items in pkg-plist which are not in STAGEDIR
===> No pkg-plist issues found (check-plist)
====>> Checking for staging violations... done
=======================<phase: package        >============================

www/p5-CGI was introduced in ports r429367 add www/p5-CGI dependency (CGI was removed in Perl 5.22).