Fields with `map[string]string`

[luisdavim]

Currently fields doesn't support map[string]string.

Example:

package main

import (
    "os"

    "github.com/rs/zerolog"
)

func main() {
    fields := map[string]string{
        "bar": "baz",
        "n":   "1",
    }

    log := zerolog.New(os.Stdout)

    log.Log().
        Str("foo", "bar").
        Fields(fields).
        Msg("hello world")

}

results in:

{"foo":"bar","message":"hello world"}

whilst:

package main

import (
    "os"

    "github.com/rs/zerolog"
)

func main() {
    fields := map[string]interface{}{
        "bar": "baz",
        "n":   "1",
    }

    log := zerolog.New(os.Stdout)

    log.Log().
        Str("foo", "bar").
        Fields(fields).
        Msg("hello world")

}

outputs:

{"foo":"bar","bar":"baz","n":"1","message":"hello world"}