blockcheck: print PRETTY_NAME from /etc/os-release

blockcheck.sh

@@ -412,6 +412,10 @@ check_system()
 	else
 		uname -a
 	fi
+	[ -f /etc/os-release ] && {
+		. /etc/os-release
+		[ -n "$PRETTY_NAME" ] && echo "distro: $PRETTY_NAME"
+	}
 	echo firewall type is $FWTYPE
 	echo CURL=$CURL
 	$CURL --version

docs/changes.txt

@@ -552,5 +552,6 @@ nfqws: --dpi-desync-fakedsplit-mod=altorder  for fakedsplit/fakeddisorder
 nfqws: --dpi-desync-hostfakesplit-mod=altorder
 nfqws: fakedsplit/fakeddisorder normalize fake split pattern offset to reasm offset
 nfqws: optimize ipv4 ip_id. apply ip_id on all OS the same way.
+blockcheck: print PRETTY_NAME from /etc/os-release
 blockcheck: new strategies
 blockcheck: curl test simulation : SIMULATE=1