fix blocked CGI read

test/timeout.cgi

@@ -1,16 +1,11 @@
 #!/usr/bin/env perl
 
-use Cwd;
-use CGI;
-
-use vars '%in';
-CGI::ReadParse();
-
-print "Content-Type: text/html\r\n\r\n";
+# Make stdout unbuffered
+$| = 1;
 
 # This script outputs some content, then sleeps for 5 seconds, then exits.
 # Web server should return the content immediately after it is sent,
 # not waiting until the script exits.
+print "Content-Type: text/html\r\n\r\n";
 print "Some data";
-flush STDOUT;
-sleep 5;
+sleep 3;