fmt_8long - write an octal ASCII representation of an unsigned long integer

       fmt_8long writes an ASCII representation ('0' to '7', base 8) of source to dest and returns the number of
       bytes written.

       fmt_8long does not append \0.

       If dest equals FMT_LEN (i.e. is zero), fmt_8long returns the number of bytes it would have written.

       For convenience, fmt.h defines the integer FMT_8LONG to be big enough to contain every possible fmt_8long
       output plus \0.

       fmt_8long - write an octal ASCII representation of an unsigned long integer

scan_8long(3)

                                                                                                    fmt_8long(3)

#include<libowfat/fmt.h>

       size_t fmt_8long(char *dest,size_t source);