style: remove extra new lines. fix typo.

@@ -297,5 +297,4 @@ class MobileScanner(
         camera!!.cameraControl.setZoomRatio(1f)
     }
 
-
 }

@@ -74,7 +74,6 @@ class MobileScannerHandler(
         barcodeHandler.publishEvent(mapOf("name" to "zoomScaleState", "data" to zoomScale))
     }
 
-
     init {
         methodChannel = MethodChannel(binaryMessenger,
             "dev.steenbakker.mobile_scanner/scanner/method")
@@ -240,7 +239,7 @@ class MobileScannerHandler(
             mobileScanner!!.resetScale()
             result.success(null)
         } catch (e: ZoomWhenStopped) {
-            result.error("MobileScanner", "Called setScale() while stopped!", null)
+            result.error("MobileScanner", "Called resetScale() while stopped!", null)
         }
     }
 

@@ -40,7 +40,6 @@ public class MobileScanner: NSObject, AVCaptureVideoDataOutputSampleBufferDelega
     /// When zoom scale is changes, this callback will be called
     let zoomScaleChangeCallback: ZoomScaleChangeCallback
 
-
     /// If provided, the Flutter registry will be used to send the output of the CaptureOutput to a Flutter texture.
     private let registry: FlutterTextureRegistry?
 

@@ -88,7 +88,6 @@ class MobileScannerController {
   /// A notifier that provides zoomScale.
   final ValueNotifier<double> zoomScaleState = ValueNotifier(0.0);
 
-
   bool isStarting = false;
 
   /// A notifier that provides availability of the Torch (Flash)
@@ -327,7 +326,6 @@ class MobileScannerController {
     await _methodChannel.invokeMethod('resetScale');
   }
 
-
   /// Disposes the MobileScannerController and closes all listeners.
   ///
   /// If you call this, you cannot use this controller object anymore.