In the documentation for ERB.new
"If trim_mode is passed a String containing one or more of the
following modifiers, ERB will adjust its code generation as listed:
% enables Ruby code processing for lines beginning with % <> omit newline for lines starting with <% and ending in %> > omit newline for lines ending in %>"
What is the format for this trim_mode string? I specifically want to
use the % and <> modes. I tried passing through “%<>” but it doesn’t
seem to be working.