make distcheck run fine

REPLY is to be sent back before getting blanked and reverted to the built-in
action. Now, we can make CWD fail once and then succeed when retried.

dir instead of the source dir, reverting that change

taken care of by the exit-free anyway but caused test case 75 and 76 to
report memory leaks).

Also re-indented a small section.

in the urlglobbing just now, fixed in the debian bug tracker as Bug#203827

as otherwise will make distcheck fail

the file in the dist-hook to make distcheck run fine

make sure it set async false even when using ipv6 (made test case 20 fail
before)