module Make:
Build a logger module with custom, fixed output, prefix and flags
val log : ?fp:string -> string -> unit
print s logs the message s, returning unit.
val logf : ?fp:string -> ('a, S.t BatIO.output, unit) Pervasives.format -> 'a
As Printf.printf, only the message is printed to the logging
output and prefixed with status information per the current flags and
the currently set prefix.
val fatal : ?fp:string -> string -> 'a
fatal s logs the message s and then calls exit 1. This
exits the program with return code 1.
val fatalf : ?fp:string -> ('a, S.t BatIO.output, unit) Pervasives.format -> 'a
fatalf allows a format string (as Printf.printf)and the
arguments to that format string to build the logging message.
Exits the program with return code 1.