[update] textproc/lowdown to 0.6.4

Hello,

Here is a lowdown update to 0.6.4.

Bryan, everything seem ok?

Thanks,
Lucas

Index: Makefile
===================================================================
RCS file: /cvs/ports/textproc/lowdown/Makefile,v
retrieving revision 1.19
diff -u -p -r1.19 Makefile
--- Makefile 22 Feb 2020 11:29:17 -0000 1.19
+++ Makefile 4 Apr 2020 15:17:26 -0000
@@ -1,7 +1,7 @@
# $OpenBSD: Makefile,v 1.19 2020/02/22 11:29:17 sthen Exp $

COMMENT = simple markdown translator
-DISTNAME = lowdown-0.5.4
+DISTNAME = lowdown-0.6.4
CATEGORIES = textproc

HOMEPAGE = https://kristaps.bsd.lv/lowdown/
Index: distinfo
===================================================================
RCS file: /cvs/ports/textproc/lowdown/distinfo,v
retrieving revision 1.16
diff -u -p -r1.16 distinfo
--- distinfo 22 Feb 2020 11:29:17 -0000 1.16
+++ distinfo 4 Apr 2020 15:17:26 -0000
@@ -1,2 +1,2 @@
-SHA256 (lowdown-0.5.4.tar.gz) = VbTDlqP9IOljqb94kau0EgArpfVX5+iVmp0aFiAyVQo=
-SIZE (lowdown-0.5.4.tar.gz) = 119029
+SHA256 (lowdown-0.6.4.tar.gz) = EPftZ5/jJMAAs7I0955bEolbpCISgH0kKv3Eja0Tjno=
+SIZE (lowdown-0.6.4.tar.gz) = 154971