uppercase port option for scp

[timrspratt]

It appears in the refactor into extra options in 1.7.0 that this line was removed:

1.6.0...1.7.0#diff-5d960cb119d12ad8d1d5a0e2075f46ea699e824926b237972eedae4a8a0ac9a6L208

The SCP option is an uppercase -P, but with the refactor, this is now imploding the -p

This is resulting in a failure to run any upload command using scp (even when using port 22)

[timrspratt]

Apologies, the link appeared to lose the #.

This was removed:

This was added:

Since it needs to be lowercase for the usual ssh connection, I've detected the array key port and modified it. There may be a nicer way though if anyone has an idea?

[freekmurze]

Going to merge this for now, and improve on it later. Thanks!