Allow send() to skip appending newline at the end.

[mzagozen]

Sometimes, you only want to send a control character (Ctrl-C) without a newline.

This PR adds a new optional newline boolean parameter to the send() method to override the default behavior.

[coveralls]

Coverage decreased (-0.7%) to 99.185% when pulling e93579b on mzagozen:master into dda719f on fgimian:master.

[coveralls]

Coverage decreased (-0.3%) to 99.638% when pulling 11560db on mzagozen:master into dda719f on fgimian:master.

[mzagozen]

This is odd. I added a test case that works on my machine, but fails in travis.
I'm running the tests locally with pytest -s --cov paramiko_expect --cov-report term-missing.

Any ideas @fgimian?

[fruch]

I would suggest doing this a bit diffrent
something like

def send(self, send_string, newline=None):
    newline = newline if newline else self.newline
    self.current_send_string = send_string
    self.channel.send(send_string + newline)

[fruch]

@mzagozen thanks for you input
please see my comments

as for testing in CI, what did you expect to happen ?

[fruch]

after looking into the CI jobs, it's not your fault it was failing the docker image I was using there was renamed, I'll deliver a fix to master soon...