Widow/Orphan lines in docs

I am seeing some cases where multi-line SQL commands are having their
final line pushed to the top of the next page. For example, in the 8.3
docs:

http://www.postgresql.org/files/documentation/pdf/8.3/postgresql-8.3-US.pdf

I see a CREATE FUNCTION on PDF page number 817 having its last line
pushed to page 818. Is this normal? Can it be avoided?

--
Bruce Momjian <bruce@momjian.us> http://momjian.us
EnterpriseDB http://postgres.enterprisedb.com

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