ebnf-entry-percentage

ebnf-entry-percentage is a variable defined in `ebnf2ps.el'.
Its value is

0.5

Documentation:
Specify entry height on alternatives.

It must be a float between 0.0 (top) and 1.0 (bottom).

You can customize this variable.

This variable was introduced, or its default value was changed, in version 20 of Emacs.