pdsh was located on Google Code, which shut down recently.
Four other distros switched to the new URL introduced in
this commit.
* gnu/packages/ssh.scm (pdsh): Update to 2.33.
[source]: Use new upstream URL.
(arguments)[phases]: Add new files to substitute in 'patch-/bin/sh' phase.
Add new 'patch-tests' phase to make test 't6036-long-output-lines' pass.
[native-inputs]: Add 'which'.
[home-page]: Use new upstream URL.
Signed-off-by: Kei Kebreau <kkebreau@posteo.net>