This variable sets the maximum number of lines that can be included in the
error file. It's especially useful when you are using the file trace function of
the debugger. When the size of the error file reaches the number of lines
specified in this variable, the error file is "rewound" to its beginning, and
subsequent lines of output overwrite existing lines in the file. For example, if
you set the maximum to "300", then lines 301 and 302 would overwrite lines 1 and
2 in the file.
To help you locate the end of the file, the message "*** End of log ***" is
output whenever the runtime shuts down. Line numbers are included in each line
of the file, in columns one through seven. The default value is "0", which
means do not limit the size of the file.
This variable is not available on VMS systems.