Made libssh2 logging more verbose when debugging is enabled.

the testsuite to count them as errors of the same kind

easycode list (discovered by runtests' torture test).

three additional files once that we have already open()ed the
big bunch of file descriptors.

SAFETY_MARGIN additional files once that we have already open()ed
the big bunch of file descriptors.

response and/or my personal lack of time to deal further with them at this
point.

open file limit.  In this case the test is skipped with a
message showing this limitation when the number of open files
needed for the test is greater than 256.

and avoid using ! as last char of line.

Use the more traditional DJGPP define.
Added basename() for non-djgpp targets.