fluent-bit flb_sds_destroy and flb_free

461 void flb_sds_destroy(flb_sds_t s)
462 {
463     struct flb_sds *head;
464
465     if (!s) {
466         return;
467     }
468
469     head = FLB_SDS_HEADER(s);
470     flb_free(head);
471 }

120 static inline void flb_free(void *ptr) {
121     free(ptr);
122 }

typedef char *flb_sds_t;