Force files overwrite with USE_ZIP=yes

[Alexey Dokuchaev]

Hello there!

While, when [gb]ziped distfiles explicitly set to overwrite existing
files upon extraction, this is not the case with .zip-suffixed
distfiles, thus requiring explicit override of EXTRACT_BEFORE_ARGS for
some ports that need this.  I therefore propose the following change to
/usr/ports/Mk/bsd.port.mk to make things easier for porters and general
consistency with GZIP/BZIP2 distfiles behavior.

--- bsd.port.mk.orig	Mon Jun  2 03:42:10 2003
+++ bsd.port.mk	Mon Jun  2 03:42:20 2003
@@ -1743,7 +1743,7 @@
 # EXTRACT_SUFX is defined in .pre.mk section
 .if defined(USE_ZIP)
 EXTRACT_CMD?=                   unzip
-EXTRACT_BEFORE_ARGS?=   -q
+EXTRACT_BEFORE_ARGS?=   -qo
 EXTRACT_AFTER_ARGS?=    -d ${WRKDIR}
 .else
 EXTRACT_BEFORE_ARGS?=   -dc

./danfe