custom-binary plugin does not support whitespace

[skyshineb]

I've recently stuck with error on other project using this plugin.
I have git installed on Windows in C:\Program Files\Git with respective binary path C:\Program Files\Git\bin\git.exe and when SimpleGit is instantiated it receives this path as custom binary.
But it will not pass the Regex check ^([a-z]:)?([a-z0-9/.\\_-]+)$ in simple-git/src/lib/plugins/custom-binary.plugin.ts because it does not contain whitespace nor ~(to use with shorten windows path).

Can someone explain to me why this is desired behavior or maybe it's a bug?

[skyshineb]

@steveukx Hi! Can you please take a look?