$NetBSD$

Fix unportable test(1) comparison operator.

--- bin/testserver.orig	2014-12-09 09:59:00.000000000 +0000
+++ bin/testserver
@@ -55,7 +55,7 @@ usage ()
   echo "        -v  Verbose.";
   echo "        -z  Use SSL.";
 
-  if [ "${1-}" == "-" ]; then return 0; fi;
+  if [ "${1-}" = "-" ]; then return 0; fi;
   exit 64;
 }
 
@@ -76,7 +76,7 @@ done;
 
 shift $((${OPTIND} - 1));
 
-if [ $# == 0 ]; then
+if [ $# = 0 ]; then
   set - "--all";
 fi;
 
