Fix: Implement golangci-lint suggestions

main.go

@@ -1,9 +1,7 @@
 package main
 
 import (
-	"math/rand"
 	"os"
-	"time"
 
 	"github.com/aptly-dev/aptly/aptly"
 	"github.com/aptly-dev/aptly/cmd"
@@ -22,7 +20,5 @@ func main() {
 
 	aptly.Version = Version
 
-	rand.Seed(time.Now().UnixNano())
-
 	os.Exit(cmd.Run(cmd.RootCommand(), os.Args[1:], true))
 }