dd218662c0c14b52f203c4382c8f0305c582e09d

{@code foo} is shorter and easier to read and write than <code>foo</code>, which is why it was introduced years ago in the javadoc processor. Make consistent use of it throughout the documentation comments. Change-Id: I59d428cb6c5015453629398b0697891b83c8e91d
Description
RETIRED, Gerrit as used by OpenStack