Let nsock use /bin/sh instead of Bash for testing

nsock/tests/run_tests.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/bin/sh
 
 # nsock regression test suite
 # Same license as nmap -- see http://nmap.org/book/man-legal.html
@@ -51,29 +51,29 @@ then
 fi
 
 
-function setup_echo_udp() {
+setup_echo_udp() {
   $NCAT -l --udp --sh-exec cat 127.0.0.1 $PORT_UDP &
   pid_udp=$!
   echo "started UDP listener on port $PORT_UDP (pid $pid_udp)"
 }
 
-function setup_echo_tcp() {
+setup_echo_tcp() {
   $NCAT -l --keep-open --sh-exec cat 127.0.0.1 $PORT_TCP &
   pid_tcp=$!
   echo "started TCP listener on port $PORT_TCP (pid $pid_tcp)"
 }
 
-function setup_echo_tcpssl() {
+setup_echo_tcpssl() {
   $NCAT -l --ssl --keep-open --sh-exec cat 127.0.0.1 $PORT_TCPSSL &
   pid_tcpssl=$!
   echo "started TCP SSL listener on port $PORT_TCPSSL (pid $pid_tcpssl)"
 }
 
-function cleanup_all() {
+cleanup_all() {
   kill -s KILL $@ 2>&1 >> /dev/null
 }
 
-function main() {
+main() {
   setup_echo_udp $PORT_UDP
   setup_echo_tcp $PORT_TCP
   setup_echo_tcpssl $PORT_TCPSSL