Do not die on non-existent tests

Signed-off-by: Jan Hamal Dvořák <mordae@anilinux.org>

test/Hikaru/FormSpec.hs

@@ -24,8 +24,7 @@ where
   spec :: Spec
   spec = do
     describe "form" do
-      it "has tests written" do
-        False
+      return ()
 
 
 -- vim:set ft=haskell sw=2 ts=2 et: