dynamics in parenthesis and square brackets

[Graham Percival]

Could somebody run this example through convert-ly to bring it
up to 2.5.9?  I have a vague recollection that the syntax of
\center-align was changed between 2.4.2 and 2.5.9, and I'd like
to add this to the manual.

In addition, the square bracket in "\markup{ \bracket { foo } }"  looks
a little bit too close to foo.  Should we increase the horizontal 
spacing
on the \bracket?


\version "2.4.2"
rndf = \markup{ \center-align <{ \bold{\italic (} \dynamic f 
\bold{\italic )} }> }
boxf = \markup{ \bracket { \dynamic f } }
{ c'1_\rndf c'1_\boxf }