490 Refresh with bad usernames. Mercurial used to abort on bad usernames,

   491 but only after writing the bad name into the patch.

   492 

   493   $ hg init bad-usernames

   494   $ cd bad-usernames

   495   $ touch a

   496   $ hg add a

   497   $ hg qnew a

   498   $ hg qrefresh -u 'foo

   499   > bar'

   500   transaction abort!

   501   rollback completed

   502   refresh interrupted while patch was popped! (revert --all, qpush to recover)

   503   abort: username 'foo\nbar' contains a newline!

   504   [255]

   505   $ cat .hg/patches/a

   506   # HG changeset patch

   507   # Parent 0000000000000000000000000000000000000000

   508   diff --git a/a b/a

   509   new file mode 100644

   510   $ hg qpush

   511   applying a

   512   now at: a

   513   $ hg qrefresh -u ' '

   514   transaction abort!

   515   rollback completed

   516   refresh interrupted while patch was popped! (revert --all, qpush to recover)

   517   abort: empty username!

   518   [255]

   519   $ cat .hg/patches/a

   520   # HG changeset patch

   521   # Parent 0000000000000000000000000000000000000000

   522   diff --git a/a b/a

   523   new file mode 100644

   524   $ cd ..