improve interop with other libs/stdlib

logging/funcs_nulllogger.go

@@ -1,7 +1,7 @@
 package logging
 
 import (
-	`log`
+	"log"
 )
 
 // Setup does nothing at all; it's here for interface compat. 🙃
@@ -84,3 +84,11 @@ func (l *NullLogger) ToLogger(prio logPrio) (stdLibLog *log.Logger) {
 
 	return
 }
+
+// ToRaw returns a *logWriter. (This is a little less efficient than using ToLogger's log.Logger as an io.Writer if that's all you need.)
+func (l *NullLogger) ToRaw(prio logPrio) (raw *logWriter) {
+
+	raw = &logWriter{backend: l, prio: prio}
+
+	return
+}