Mac OS getting go working
<!-- bug reporting without issue template will be closed automatically -->

## Expected behavior, english is required

Be able to type code.

## Debug info

```console
NVIM v0.4.3
Build type: Release
LuaJIT 2.0.5

 go version
go version go1.16.2 darwin/amd64
```

Mac OS 11.2.3
Installed SpaceVim today from home-brew.

```

[deoplete] Traceback (most recent call last):
  File "/Users/asfdaf/.cache/vimfiles/repos/github.com/zchee/deoplete-go/rplugin/python3/deoplete/sources/deoplete_go.p
y", line 296, in get_complete_result
    result = loads(stdout_data.decode())
ValueError: Expected object or value
flag provided but not defined: -f
Go is a tool for managing Go source code.
Usage:
^Igo <command> [arguments]
The commands are:
^Ibug         start a bug report
^Ibuild       compile packages and dependencies
^Iclean       remove object files and cached files
^Idoc         show documentation for package or symbol
^Ienv         print Go environment information
^Ifix         update packages to use new APIs
^Ifmt         gofmt (reformat) package sources
^Igenerate    generate Go files by processing source
^Iget         add dependencies to current module and install them
^Iinstall     compile and install packages and dependencies
^Ilist        list packages or modules
^Imod         module maintenance
^Irun         compile and run Go program
^Itest        test packages
^Itool        run specified go tool
^Iversion     print Go version
^Ivet         report likely mistakes in packages
Use "go help <command>" for more information about a command.
Additional help topics:
^Ibuildconstraint build constraints
^Ibuildmode       build modes
^Ic               calling between Go and C
^Icache           build and test caching
^Ienvironment     environment variables
^Ifiletype        file types
^Igo.mod          the go.mod file
^Igopath          GOPATH environment variable
```