Does not support ~ in config file paths

[senorprogrammer]

What's the problem?

When specifying a custom config file path, cannot use ~:

wtf --config=~/Desktop/simple_config.yml

2018/08/13 09:29:56 main.go:169: stat /Users/ccummer/go/src/github.com/senorprogrammer/wtf/~/Desktop/simple_config.yml: no such file or directory

How did you expect it to behave?

Treat that as the home directory and path from there.

Operating system

Terminal program & version

WTF version

[deltaxflux]

Using ~ is mostly a bad idea because ~ doesn't extend to the full path. Better is $HOME because this extend to the full path like /home/<user>. So this a minor problem.