Tests: http_disable_symlinks.t fails on NetBSD.

See http://gnats.netbsd.org/43154 for details.
diff --git a/http_disable_symlinks.t b/http_disable_symlinks.t
index 62e3202..327f1cf 100644
--- a/http_disable_symlinks.t
+++ b/http_disable_symlinks.t
@@ -209,7 +209,7 @@
 ###############################################################################
 
 SKIP: {
-skip 'cannot test under symlink', 25 if $d ne realpath($d);
+skip 'cannot test under symlink', 25 if $d ne realpath($d) or $^O eq 'netbsd';
 
 like(http_get_host('s1', '/link'), qr!200 OK!, 'static (off, same uid)');
 like(http_get_host('s1', '/link2'), qr!200 OK!, 'static (off, other uid)');