ports-mgmt/portlint: Update to 2.19.9

• Update CONFLICTS check to cover all variables and checks performed by bsd.port.mk [1]
• Add some other allowed fully-qualified paths [2]
• Don't consider variable substitution when checking DEPENDS [3]

PR: 259813 [2]

		259244 [3]

Sybmitted by: se [1]

		gerald [2]

Differential Revision: https://reviews.freebsd.org/D32733 [1]