Add test scripts for #768: Support CGI scripts with <LF> instead of <CRLF>

test/cgidir/test-crlf.cgi

@@ -0,0 +1,5 @@
+#!/bin/sh
+printf "Content-Type: text/plain\r\n"
+printf "\r\n"
+printf "This should be the first line\r\n"
+

test/cgidir/test-lf.cgi

@@ -0,0 +1,5 @@
+#!/bin/sh
+printf "Content-Type: text/plain\n"
+printf "\n"
+printf "This should be the first line\n"
+