system/ttf-ipaex: Fix download URL.

Signed-off-by: B. Watson <yalhcru@gmail.com>

Signed-off-by: Willy Sudiarto Raharjo <willysr@slackbuilds.org>

system/ttf-ipaex/ttf-ipaex.info

@@ -1,7 +1,7 @@
 PRGNAM="ttf-ipaex"
 VERSION="004.01"
 HOMEPAGE="https://ipafont.ipa.go.jp"
-DOWNLOAD="https://ipafont.ipa.go.jp/IPAexfont/IPAexfont00401.zip"
+DOWNLOAD="https://ftp.netbsd.org/pub/pkgsrc/distfiles/IPAexfont00401.zip"
 MD5SUM="57f2631833c1049ea89320971cc74ce5"
 DOWNLOAD_x86_64=""
 MD5SUM_x86_64=""