ref: 1fe2c325416d8affab446a50397da8b43f1a57c6
dir: /sys/src/cmd/bzfs/bzfs.h/
int unbzip(int); void _unbzip(int, int); int unbflz(int); int xexpand(int); void *emalloc(ulong); void *erealloc(void*, ulong); char *estrdup(char*); void ramfsmain(int, char**); extern int chatty; void error(char*, ...);