update zh-kcfonts MASTER_SITES

Hi,

This diff updates to working master_sites, ok?

Index: Makefile
===================================================================
RCS file: /cvs/ports/fonts/zh-kcfonts/Makefile,v
retrieving revision 1.4
diff -u -p -u -p -r1.4 Makefile
--- Makefile 31 Mar 2015 09:45:12 -0000 1.4
+++ Makefile 29 Jan 2019 08:32:33 -0000
@@ -8,7 +8,7 @@ CATEGORIES= fonts chinese x11

PERMIT_PACKAGE_CDROM= Yes

-MASTER_SITES= http://cle.linux.org.tw/fonts/bitmap/KCFONTS/
+MASTER_SITES= https://ftp.kh.edu.tw/Linux/CLE/fonts/bitmap/KCFONTS/
DIST_SUBDIR= zh-kcfonts
DISTFILES= ${FONTS}