Update CONFLICTS check to cover all variables and checks performed by bsd.port.mk

[se]

Summary

The CONFLICTS specification checks did cover only a subset of relevant cases:

• Only CONFLICTS was checked, but CONFLICTS_BUILD and CONFLICTS_INSTALL are also relevant
• The comparison was only against the full package name, but the actual conflicts check compares with $P{KGBASE} too.

Test Plan

Add a self-conflicting entry to CONFLICTS_BUILD or CONFLICTS_INSTALL and verify that this conflict is now detected.
Test as patterns both the package name with some version pattern and the package name without the version part.

[marcus]

This looks good, but please do not commit to portlint directly. I will incorporate this into an upcoming release. Thanks.

[se]

Update previous patch to include a check for redundant "-[0-9]*" version patterns in CONFLICTS entries.
I have removed those endings from 388 ports in ports commit 819f25b36d45b8, and this check is meant to prevent those version patterns from re-occurring ...

[se]

Update previously added check for redundant "-[0-9]*" endings of CONFLICTS patterns.
The warning should not be printed if the preceding FATAL error condition has been triggered.

[marcus]

Thanks. Working on this today. I noticed your latest addition had fancy quotes in it, but I've pulled those out.

[marcus]

Committed, thanks!