Correction.

git-svn-id: svn+ssh://svn.code.sf.net/p/firebird/code/firebird/trunk@58175 65644016-39b1-43b1-bf79-96bc8fe82c15
Correct UDR headers for when Firebird namespace is not 'used'.

git-svn-id: svn+ssh://svn.code.sf.net/p/firebird/code/firebird/trunk@58176 65644016-39b1-43b1-bf79-96bc8fe82c15