org-agenda-menu-show-matcher

org-agenda-menu-show-matcher is a variable defined in `org-agenda.el'.
Its value is

t

Documentation:
Non-nil means show the match string in the agenda dispatcher menu.
When nil, the matcher string is not shown, but is put into the help-echo
property so than moving the mouse over the command shows it.
Setting it to nil is good if matcher strings are very long and/or if
you want to use two-columns display (see `org-agenda-menu-two-columns').

You can customize this variable.

This variable was introduced, or its default value was changed, in version 24.1 of Emacs.