You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: log.go
    path of file: ./repos/kubeedge/vendor/github.com/bifurcation/mint
    
    the code of the file until where you have to start completion: package mint

import (
	"fmt"
	"log"
	"os"
	"strings"
)

// We use this environment variable to control logging.  It should be a
// comma-separated list of log tags (see below) or "*" to enable all logging.
const logConfigVar = "MINT_LOG"

// Pr
    
func parseLogEnv(env []string) {
	for _, stmt := range env {
		if strings.HasPrefix(stmt, logConfigVar+"=") {
			val := stmt[len(logConfigVar)+1:]

			if val == "*" {
				logAll = true
			} else {
				for _, t := range strings.Split(val, ",") {
					logSettings[t] = true
				}
			}
		}
	}
}