refactor(proxy-ssh): prefix internal function with 'proxy_'
refactor(proxy-ssh): prefix internal function with 'proxy_'

So we don't mix them with the program argument

Signed-off-by: Edouard Lopez <492283376763148288091dc1edb13b1b4edf3d1b@edouard-lopez.com>

edouard-lopez/sshuttle-helper