index.html always gets additional lines added

[Bungeefan]

Attention: If you open a bug report without sufficient details, it will be closed. Is your question
related to Android 12? Please check the notes on Android 12 first (https://pub.dev/packages/flutter_native_splash#android-12-support).

Describe the bug

Everytime the create task is executed, the package adds new lines to index.html. Even if there are already enough lines.

Configuration

Shouldn't need any configuration but if in doubt, see configuration from #429

To Reproduce
Steps to reproduce the behavior, using the example app:

1. Set the config
2. Run flutter pub run flutter_native_splash:create multiple times
3. See index.html for new lines after the last picture tag.

Screenshots

Additional context

[jonbhanson]

Thanks for catching this. I will soon push an update that includes a fix.

[Bungeefan]

Thanks for the quick fix!
Is it intenional that it still adds a single blank line after each create execution?