by soariez:

What steps will reproduce the problem?
If possible, include a link to a program on play.golang.org.
1. http://play.golang.org/p/EfAZLsvwnr
2. press Format
3. the spaces between 'map[string]', 'int', and '{' disapper

What is the expected output?

package test

var foo = map[string] int {
    "test": 1,
}

What do you see instead?

package test

var foo = map[string]int{
    "test": 1,
}