MFH: r445301 r447735

• Updated to 0.2.3
• Removed append flag on LIBS and CONFIGURE_ENV, these are not required
• Modernized post-patch target

PR: 220442
Submitted by: Koichiro IWAO <meta+ports@vmeta.jp> (maintainer)
Reviewed by: matthew (mentor)
Approved by: matthew (mentor)
Differential Revision: https://reviews.freebsd.org/D11499, https://reviews.freebsd.org/D11965

Approved by: ports-secteam (feld)