Fixed another format error

packages/webview_flutter/ios/Classes/FlutterWebView.m

@@ -249,8 +249,8 @@ - (NSString*)applySettings:(NSDictionary<NSString*, id>*)settings {
     } else if ([key isEqualToString:@"debuggingEnabled"]) {
       // no-op debugging is always enabled on iOS.
     } else if ([key isEqualToString:@"userAgent"]) {
-        NSString* userAgent = settings[key];
-        [self updateUserAgent:[userAgent isEqual:[NSNull null]] ? nil : userAgent];
+      NSString* userAgent = settings[key];
+      [self updateUserAgent:[userAgent isEqual:[NSNull null]] ? nil : userAgent];
     } else {
       [unknownKeys addObject:key];
     }
@@ -344,11 +344,11 @@ - (void)onGetUserAgent:(FlutterMethodCall*)call result:(FlutterResult)result {
 }
 
 - (void)updateUserAgent:(NSString*)userAgent {
-    if (@available(iOS 9.0, *)) {
-        [_webView setCustomUserAgent:userAgent];
-    } else {
-        NSLog(@"Updating UserAgent is not supported for Flutter WebViews prior to iOS 9.");
-    }
+  if (@available(iOS 9.0, *)) {
+    [_webView setCustomUserAgent:userAgent];
+  } else {
+    NSLog(@"Updating UserAgent is not supported for Flutter WebViews prior to iOS 9.");
+  }
 }
 
 @end