Fix undefined variable error.

Author: spencerfinnell

app/integrations/woocommerce/templates/loop/no-products-found.php

@@ -25,4 +25,4 @@
 
 <<?php echo esc_attr( $html_tag ); ?> class="woocommerce-info">
 	<?php esc_html_e( 'No products were found matching your selection.', 'bigbox' ); ?>
-</<?php echo esc_attr( $tag ); ?>>
+</<?php echo esc_attr( $html_tag ); ?>>