Merged, but I think in practise it does enqueue in the footer. Every instance (I think) of wp_enqueue_script() is called after the header, so the variable shouldn't make any difference (but I've not checked).
In my case the script was in the header. I found it while testing my site with speed testing tools. Once I amended the plugin with the true parameter, the script went to the bottom. FWIW.
Merged, but I think in practise it does enqueue in the footer. Every instance (I think) of
wp_enqueue_script()
is called after the header, so the variable shouldn't make any difference (but I've not checked).