stream-requirements: smoother matching in test-ssh-proto.t
The value of `streamreqs` changes depending of the format used, but this is not
relevant for this tests. So we doing a smarter matching of the line to avoid
this test interfering with format changes in the future.
Differential Revision: https://phab.mercurial-scm.org/D12080
edition = "2018"
max_width = 79
wrap_comments = true
error_on_line_overflow = true