target-shell tab completion on filenames with spaces fails

[skepppy]

When doing tab completion on a file with spaces in target-shell, the spaces are not escaped, resulting in an erroneous file path.

Example, where initially I tab-completed the filename, showing ls failing. Then, a second time, where I escaped the spaces, showing ls succeeding:

windows.vmx:/fs0$ ls System Volume Information/
usage: ls  [--help] [-l] [-a] [-h] [-R] [-c] [-u] [path]
target-shell: error: unrecognized arguments: Volume Information/
windows.vmx:/fs0$ ls System\ Volume\ Information/
windows.vmx:/fs0$ 

[Schamper]

#1485 should fix this I think, but I seem to remember there were some issues with it still. @JSCU-CNI is that good to continue reviewing?

[JSCU-CNI]

In #1485 we attempted to fix this - amongst other tab completion issues when dealing with spaces. Unfortunately that does not seem to fix the issue consistently (yet). We welcome any other approaches or attempts.