Refactor: extract db filename to a constant

db/boltdb.go

@@ -25,6 +25,7 @@ var (
 
 const (
 	NameIdent = "peername"
+	FileName  = "data.db"
 )
 
 func NewBoltDB(dbPathname string) (*BoltDB, error) {

prog/weaver/main.go

@@ -248,7 +248,7 @@ func main() {
 		Log.Fatalf("--awsvpc mode is not compatible with the --password option")
 	}
 
-	db, err := db.NewBoltDB(dbPrefix + "data.db")
+	db, err := db.NewBoltDB(dbPrefix + db.FileName)
 	checkFatal(err)
 	defer db.Close()