Do not attempt to show init system if not found

src/modules.go

@@ -130,10 +130,16 @@ func initializeModuleMap() {
 
 	// Init system module
 	initSystemModule := StormfetchModule{stormfetchModuleConfig: stormfetchModuleConfig{Name: "init_system", Format: "%3Init: %4$INIT"}, Execute: func(sm StormfetchModule) string {
+		initSystem := GetInitSystem()
+
+		if initSystem == "" {
+			return ""
+		}
+
 		return os.Expand(sm.Format, func(s string) string {
 			switch s {
 			case "INIT":
-				return GetInitSystem()
+				return initSystem
 			default:
 				return ""
 			}

src/system.go

@@ -138,6 +138,11 @@ func GetInitSystem() string {
 		return ""
 	}
 
+	// Return if init system can't be found
+	if process == nil {
+		return ""
+	}
+
 	// Special cases
 	// OpenRC check
 	if _, err := os.Stat("/usr/sbin/openrc"); err == nil {