ref: c6a3e6b464ba23d8c99355b77c49690d6d07a6c4
dir: /sys/src/libc/fmt/seprint.c/
#include <u.h>
#include <libc.h>
char*
seprint(char *buf, char *e, char *fmt, ...)
{
char *p;
va_list args;
va_start(args, fmt);
p = vseprint(buf, e, fmt, args);
va_end(args);
return p;
}