get rid of a few global variables

cmd/restic/global.go

@@ -43,7 +43,7 @@ import (
 	"golang.org/x/term"
 )
 
-var version = "0.16.4-dev (compiled manually)"
+const version = "0.16.4-dev (compiled manually)"
 
 // TimeFormat is the format used for all timestamps printed by restic.
 const TimeFormat = "2006-01-02 15:04:05"

cmd/restic/main.go

@@ -94,8 +94,6 @@ func needsPassword(cmd string) bool {
 	}
 }
 
-var logBuffer = bytes.NewBuffer(nil)
-
 func tweakGoGC() {
 	// lower GOGC from 100 to 50, unless it was manually overwritten by the user
 	oldValue := godebug.SetGCPercent(50)
@@ -108,6 +106,7 @@ func main() {
 	tweakGoGC()
 	// install custom global logger into a buffer, if an error occurs
 	// we can show the logs
+	logBuffer := bytes.NewBuffer(nil)
 	log.SetOutput(logBuffer)
 
 	err := feature.Flag.Apply(os.Getenv("RESTIC_FEATURES"), func(s string) {