the checker is not checking Socks4 proxies, option to save the result in txt file

[bawzz234]

Hi,

Thank you so much for creating this app. It checks the proxies at a fast rate. I tested with working socks4 in the list but after checking the proxies result gave HTTP and Socks5 but socks4 isn't showing or not checking. Could you please check the issue?

Also, can you add these commands:

• an option to save the result in a txt file using a command like -out
• add an option to set threads using cmd like -th

Best Regards

[APT37]

The underlying library does not support SOCKS4 yet. seanmonstar/reqwest#610