Message 105175 - Python tracker

New patch:
 - set encoding to ASCII on nl_langinfo(CODESET) failure
 - set encoding to ASCII if nl_langinfo(CODESET) is missing
 - document the changes

NEWS entry: "Issue #8610: Load file system codec at startup, and display a fatal error on failure. Set the file system encoding to ascii if getting the locale encoding failed, or if nl_langinfo(CODESET) function is missing."