Tools/scripts/rmport: update for Bugzilla and usability improvements

[rene]

Summary

Tweak the Tools/scripts/rmport script to:
-look for bug reports on Bugzilla (needs pretty-printing)

• allow for PORTSDIR to be a symbolic link
• forcibly remove tmp/rmport.XXXXX/ports so that the tmp/rmprt.XXXXXX/ports/.svn directory is deleted without asking the user

Test Plan

Tested with net/isc-dhcp41-server (net/omcmd has a dependency on it), net/samba36 (has active PRs in Bugzilla) and lang/bf2c (no PRs or reverse dependencies)

[rene]

Also allow PORTSDIR to be a symbolic link when using the -a option.

[rene]

Perhaps the script should also check Phabricator for patches when looking for PRs on Bugzilla?

[rene]

Prevent a false positive in check_dep_core() if the port name on the command line ends with a slash, e.g., lang/bf2c/

[crees]

Looks great-- I've put in an improvement for the PR check, but thanks for the rest, great work.

Tools/scripts/rmport

233

Try this regex-- it works well for me:

1. Strip out the HTML, find PR# and synopsis, print
   
   printf "%s" "${raw}" \ |sed -ne 's,^:space:*.a href="show_bug.cgi?id=\([0-9][0-9]*\)".\([^0-9][^<]*\).*,\1: \2,p' \ |sort