EFUN: find_call_out

SYNTAX
int find_call_out( fun );
  string fun;

DESCRIPTION
This efun finds the first call_out due to be executed in the current
object for function 'fun'. It gives the time left before the call is made.

RETURN VALUE:
If there is no call pending for the specified function -1 is returned.
Otherwise it returns the time left until the call is made.

SEE ALSO:
call_out
remove_call_out
call_out_info

EXAMPLE:
if( find_call_out( "heal_slowly" ) == -1 ) {
  write( "You suffer from a curse that prevents you "
    + "from healing normally.\n" );
}
// This way you can check for pending calls to a healing function.
