Re: update net/ipv6calc

DEBUG=-g3 is honored for the normal build but not tests:

$ make DEBUG=-g3 test
...
gmake[2]: Leaving directory '/tmp/pobj/ipv6calc-1.1.0/ipv6calc-1.1.0'
cc -o ipv6calc ipv6calc.o showinfo.o ipv6calchelp_local.o -lcrypto -L../lib/ -L../databases/lib/ -lipv6calc_db_wrapper -lipv6calc -lm
...

Which is needed since one test reproducibly dumps core on my X250:

...
INFO : run 'ipv6calc' pipe tests (1)
Segmentation fault (core dumped)
INFO : test 'echo 3ffe::1:ff00:1234 | ./ipv6calc --in ipv6addr --out ipv6addr --printuncompressed | grep "^3ffe:0:0:0:0:1:ff00:1234$"'
Error executing 'ipv6calc' (1)!
gmake[1]: *** [Makefile:65: test] Error 1
gmake[1]: Leaving directory '/tmp/pobj/ipv6calc-1.1.0/ipv6calc-1.1.0/ipv6calc'
Result: 2
gmake: *** [Makefile:166: test] Error 2
*** Error 2 in . (/usr/ports/infrastructure/mk/bsd.port.mk:2768 '/tmp/pobj/ipv6calc-1.1.0/.test_done')
*** Error 1 in /usr/ports/net/ipv6calc (/usr/ports/infrastructure/mk/bsd.port.mk:2412 'test')

Homepage has TLS.