Почему выдает предупреждение error strings should not be capitalized or end with punctuation or a newline?

Question

[Антон Пацев]

Почему выдает предупреждение error strings should not be capitalized or end with punctuation or a newline?
Вот код:

package main

import (
	"fmt"
	"net"
)

func localAddresses() {
	ifaces, err := net.Interfaces()
	if err != nil {
		fmt.Print(fmt.Errorf("localddresses: %v", err.Error()))
		return
	}
	for _, i := range ifaces {
		addrs, err := i.Addrs()
		if err != nil {
			fmt.Printf("localaddresses: %v", err.Error()))
			continue
		}
		for _, a := range addrs {
			switch v := a.(type) {
			case *net.IPAddr:
				fmt.Printf("%v : %s (%s)\n", i.Name, v, v.IP.DefaultMask())

			case *net.IPNet:
				fmt.Printf("%v : %s [%v/%v]\n", i.Name, v, v.IP, v.Mask)
			}

		}
	}
}

func main() {
	localAddresses()
}

Вот скриншот ошибки




Пример взял отсюда
https://stackoverflow.com/questions/23529663/how-t...

Answer 1

[Дмитрий Шицков]

Error Strings
Error strings should not be capitalized (unless beginning with proper nouns or acronyms) or end with punctuation, since they are usually printed following other context. That is, use fmt.Errorf("something bad") not fmt.Errorf("Something bad"), so that log.Printf("Reading %s: %v", filename, err) formats without a spurious capital letter mid-message. This does not apply to logging, which is implicitly line-oriented and not combined inside other messages.