Returns a character string which is the path of the audit file.
USAGE:
audit.file()
VALUE:
a character string, giving the name of the file on which the audit
information is being written.
This is the file
.Audit
in the working directory at the time of first
invoking S-PLUS.
If the working directory changes during the session with S-PLUS, the audit
file does
not change.
DETAILS:
This function is used by the
history function,
because history information is kept in the audit file..