Hi,
Basically, the problem is described in the message header.
Whereas :read-file-form option is used by ASDF itself, :read-file-line
isn't used and wasn't tested.
Attached is a patch with relevant test cases and fixes.
I would also suggest refactoring the code, because the code paths
for :read-file-form and :read-file-line are almost identical, but are
implemented in separate functions.
Best regards,
Vsevolod Dyomkin
+38-096-111-41-56
skype, twitter: vseloved