Extend apparent length of document by one NUL byte when lexing as this makes it easier to style end of document correctly.
Extend apparent length of document by one NUL byte when lexing as this makes
it easier to style end of document correctly.

windoze/scintilla,windoze/scintilla,windoze/scintilla,windoze/scintilla,windoze/scintilla,windoze/scintilla,windoze/scintilla,windoze/scintilla