* ssh and psrp - Support more complex chars in fetch_file
Fixes the psrp and ssh (with piped) fetch function to work with paths
that contains glob like characters in the path. For Windows this was
needed when using paths that contain `[]` in the path. For ssh this was
a problem with FreeBSD when using the piped transfer method with similar
characters.
Also tidies up the psrp logic to not inject the paths and buffer size
in the script but pass it as an object through an argument/parameter.
* Fix sanity check
520fa688ba