`rbw get` shouldn't output a newline when piping

[Witcher01]

Calling rbw get also outputs a newline when piped into another program like xclip.

In my opinion this should be avoided to allow nice integration into a shell script, for instance, without having to strip newlines.

Should this be implemented?

[ambroisie]

This could even be gated behing a call to isatty to check if it is used to show the password interactively or as part of a pipeline.

And of course, a command line argument to explicitly get either behaviour.

[doy]

120 should resolve this.