Odd formatting in on-line docs

The online copies of the documentation misformat <programlisting>
constructs, indenting lines after the first. For example at

http://www.postgresql.org/docs/7.4/static/sql-syntax.html#SQL-SYNTAX-LEXICAL

the three example SQL statements should all be indented the same. Older
versions look the same, as do the "interactive" versions. But the
developer version of the docs is fine:

http://developer.postgresql.org/docs/postgres/sql-syntax.html#SQL-SYNTAX-LEXICAL

I think this must be some weird interaction between the docs themselves
and the HTML wrapper that's put around them to make the online pages.
Can anyone diagnose this and fix it?

regards, tom lane