const char *descr, int *err);
extern unsigned long long parse_ulonglong(const char *str, const char *cmd,
const char *descr, int *err);
-extern int strtoblk(const char *cmd, const char *str, blk64_t *ret);
+extern int strtoblk(const char *cmd, const char *str, const char *errmsg,
+ blk64_t *ret);
extern int common_args_process(int argc, char *argv[], int min_argc,
int max_argc, const char *cmd,
const char *usage, int flags);