Skipping SVG when regenerating images

When regenerating images the SVG files do not get excluded thus causing an error which is not clear why.

$ wp media regenerate 232
Found 1 image to regenerate.
Warning: 1/1 Couldn't regenerate thumbnails for "stylelint" (ID 232).
Error: No images regenerated.

By adding a bit of extra code it can be made clear why a certain file is not being processed.

add_filter( 'wp_generate_attachment_metadata', function( $metadata, $attachment_id ) {
	if ( 'image/svg+xml' === get_post_mime_type( $attachment_id ) ) {
		return new WP_Error( 'skip_svg_generate', __( 'Skipping SVG files.', 'textdomain' ) );
	}
	return $metadata;
}, 10, 2 );

When running the regenerate script the information would be clearer.

$ wp media regenerate 232
Found 1 image to regenerate.
Warning: Skipping SVG files.
Error: No images regenerated.