dlon - turn on transaction logging
Dlon turns on transaction logging and records the name of the program doing the RMSfile changes.
Program is a null terminated string to be used as the program name when writing entries to the log file. The maximum length of this string is defined in the include file <cbase/logfile.h>.
If program is an empty string or a NULL pointer, the current program name is cleared.
Transaction logging is normally on when a program begins. Calling dlon when transaction logging is already on does nothing more than change the program name.