[feature request] let icdiff support scp protocol

[zhangzq]

Currently, icdiff does not support scp. When I run

icdiff scp://other_machine//other_file local_file

It tells me the scp://other_machine//other_file doestn't exist.

However, vimdiff scp://other_machine//other_file local_file works. Can icdiff behavior like vimdiff?

[jeffkaufman]

So, vimdiff is more or less vim, and so can do a ton of things that it doesn't make sense for other programs to add.

But unix is great for composition, so you can do this! Just write it as:

icdiff <(scp other_machine:other_file /dev/stdout) local_file