Frank Osterfeld authored Oct 21, 2009 and Ralf Habacker committed Dec 01, 2009

Remove the write_file function and use the existing
_dbus_string_save_to_file, improve error handling

Cherry picked from commit 0f7b026d01be7e0fd444cdb56e5f9b7a5137a062 in
the dbus4win repository. Edited to apply and fix whitespace issues by
tml@iki.fi.