Hello all,

I find that there are a number of places with the current expl3 code
where I need to do something like:

\tl_set:No \l_some_tl { \exp_after:wN { \l_some_tl } }

to add an extra set of braces to the content of \l_some_tl.  How would
people feel about something like \tl_add_braces:N to achieve the same
thing but as a pre-built function?
--
Joseph Wright