[maintainer update] nnn 4.2 -> 4.3

This patch updates nnn from 4.2 to 4.3.

Tested on two amd64 systems.

Index: Makefile
===================================================================
RCS file: /cvs/ports/sysutils/nnn/Makefile,v
retrieving revision 1.16
diff -u -p -r1.16 Makefile
--- Makefile 26 Jul 2021 14:17:06 -0000 1.16
+++ Makefile 4 Oct 2021 06:25:22 -0000
@@ -2,7 +2,7 @@

COMMENT = the missing terminal file browser for X

-V = 4.2
+V = 4.3
DISTNAME = nnn-v${V}
PKGNAME = nnn-${V}

Index: distinfo
===================================================================
RCS file: /cvs/ports/sysutils/nnn/distinfo,v
retrieving revision 1.13
diff -u -p -r1.13 distinfo
--- distinfo 26 Jul 2021 14:17:06 -0000 1.13
+++ distinfo 4 Oct 2021 06:25:22 -0000
@@ -1,2 +1,2 @@
-SHA256 (nnn-v4.2.tar.gz) = VnX5/lO939kmge+Iv2wPqzrYl/nnTdbN/zL+H6YsaH8=
-SIZE (nnn-v4.2.tar.gz) = 229745
+SHA256 (nnn-v4.3.tar.gz) = tt+OJi5WE90ZK6xhCm2nETBmJ9Vlc/GncKFz7weJU7s=
+SIZE (nnn-v4.3.tar.gz) = 236606