Patch by Vasiliy Kevroletin. Fixes Mantis #23655.

compiler/node.pas, tnode.printnodeinfo:
  * write flags to file "t" instead of stdout



git-svn-id: http://svn.freepascal.org/svn/fpc/trunk@23384 3ad0048d-3df7-0310-abae-a5850022a9f2