Gofmt your code

To format your code, you can use the gofmt tool directly:

gofmt -w yourcode.go

Or you can use the "go fmt" command:
 
go fmt path/to/your/package
 
 
 
what is gofmt -s :
 
It simplifies the following forms 

A slice expression of the form:
 s[a:len(s)]
will be simplified to:
 s[a:]

A range of the form:
 for x, _ = range v {...}
will be simplified to:
 for x = range v {...}

A range of the form:
 for _ = range v {...}
will be simplified to:
 for range v {...}

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