Version Control With Subversion Source

Found by: "Cousin Scuzzy" <cousinscuzzy {_AT_} hotmail.com>

* src/en/book/ch09-reference.xml
(svn.ref.svnadmin.sw): Correct the description of "--ignore-uuid".
Also, lose the "<literal>" mark-up of "UUID", as "UUID" isn't a
literal quotation and the mark-up was inconsistent.