[tests] remove dependency on CGI.pm

CGI.pm is no longer shipped as part of Perl core distribution
(and is easily replaced)

tests/docroot/www/404.fcgi

@@ -1,9 +1,7 @@
 #!/usr/bin/env perl
 
-#use CGI qw/:standard/;
 use CGI::Fast qw(:standard);
 
-my $cgi = new CGI;
 while (new CGI::Fast) {
     my $request_uri = $ENV{'REQUEST_URI'};
     print (STDERR "REQUEST_URI: $request_uri\n");

tests/docroot/www/404.pl

@@ -1,42 +1,43 @@
 #!/usr/bin/env perl
 
-use CGI qw/:standard/;
-
-my $cgi = new CGI;
 my $request_uri = $ENV{'REQUEST_URI'};  # server.error-handler-404
 my $redirect_uri= $ENV{'REDIRECT_URI'}; # server.error-handler
-print (STDERR "REQUEST_URI:  $request_uri\n");
-print (STDERR "REDIRECT_URI: $redirect_uri\n");
 
 if ($request_uri =~ m/^\/dynamic\/200\// ) {
-  print header ( -status => 200,
-                 -type   => 'text/plain' );
-  print ("found here\n");
+  print "Status: 200\n",
+        "Content-Type: text/plain\n",
+        "\n",
+        "found here\n";
 }
 elsif ($request_uri =~ m|^/dynamic/302/| ) {
-  print header( -status=>302,
-                -location => 'http://www.example.org/');
+  print "Status: 302\n",
+        "Location: http://www.example.org/\n",
+        "\n";
 }
 elsif ($request_uri =~ m/^\/dynamic\/404\// ) {
-  print header ( -status => 404
-                 -type   => 'text/plain' );
-  print ("Not found here\n");
+  print "Status: 404\n",
+        "Content-Type: text/plain\n",
+        "\n",
+        "Not found here\n";
 }
 elsif ($request_uri =~ m/^\/send404\.pl/ ) {
-  print header ( -status => 404
-                 -type   => 'text/plain' );
-  print ("Not found here (send404)\n");
+  print "Status: 404\n",
+        "Content-Type: text/plain\n",
+        "\n",
+        "Not found here (send404)\n";
 }
 elsif ($request_uri =~ m/^\/dynamic\/nostatus\// ) {
   print ("found here\n");
 }
 elsif ($redirect_uri =~ m/^\/dynamic\/redirect_status\// ) {
-  print header ( -status => $ENV{'REDIRECT_STATUS'},
-                 -type   => 'text/plain');
-  print ("REDIRECT_STATUS\n");
+  print "Status: $ENV{'REDIRECT_STATUS'}\n",
+        "Content-Type: text/plain\n",
+        "\n",
+        "REDIRECT_STATUS\n";
 }
 else {
-  print header ( -status => 500,
-                 -type   => 'text/plain');
-  print ("huh\n");
+  print "Status: 500\n",
+        "Content-Type: text/plain\n",
+        "\n",
+        "huh\n";
 };

tests/docroot/www/send404.pl

@@ -1,5 +1,6 @@
 #!/usr/bin/env perl
-use CGI qw/:standard/;
-print header ( -status => 404
-               -type   => 'text/plain' );
-print ("send404\n");
+
+print "Status: 404\n",
+      "Content-Type: text/plain\n",
+      "\n",
+      "send404\n";