Revert "varnishtest is now more picky about vtc files"

I've just changed varnishtest to be fine with whitespace and comments

This reverts commit 2915adac.

src/tests/00basic.vtc

+# looks like -*- perl -*-
+
 varnishtest "vcl.use and .discard, and version string"
 
 server s1 {

src/tests/base64.vtc

+# looks like -*- perl -*-
+
 varnishtest "base64 encode and decode"
 
 varnish v1 -vcl {

src/tests/base64_n.vtc

+# looks like -*- perl -*-
+
 varnishtest "base64 decode_n()"
 
 varnish v1 -vcl {

src/tests/blob.vtc

+# looks like -*- perl -*-
+
 varnishtest "blob object interface"
 
 server s1 {} -start

src/tests/hex.vtc

+# looks like -*- perl -*-
+
 varnishtest "hex encode and decode"
 
 varnish v1 -vcl {

src/tests/hex_n.vtc

+# looks like -*- perl -*-
+
 varnishtest "hex decode_n()"
 
 varnish v1 -vcl {

src/tests/id.vtc

+# looks like -*- perl -*-
+
 varnishtest "IDENTITY encode and decode"
 
 varnish v1 -vcl {

src/tests/id_n.vtc

+# looks like -*- perl -*-
+
 varnishtest "IDENTITY decode_n()"
 
 varnish v1 -vcl {

src/tests/url.vtc

+# looks like -*- perl -*-
+
 varnishtest "url encode and decode"
 
 varnish v1 -vcl {

src/tests/url_n.vtc

+# looks like -*- perl -*-
+
 varnishtest "decode_n() with URL"
 
 varnish v1 -vcl {

src/tests/usage.vtc

+# looks like -*- perl -*-
+
 varnishtest "test permitted use of functions in vcl_subs"
 
 varnish v1 -vcl { backend b { .host="${bad_ip}"; } } -start

src/tests/xcode.vtc

+# looks like -*- perl -*-
+
 varnishtest "Test transcode()"
 
 varnish v1 -vcl {

src/tests/xcode_n.vtc

+# looks like -*- perl -*-
+
 varnishtest "Test transcode_n()"
 
 varnish v1 -vcl {