Fix the last charactor drop in iree_status_to_string (#5474)
Fix the last charactor drop in iree_status_to_string (#5474)

iree_status_to_string needs to send the "buffer_length + 1" capacity to
the underlying snprintf to account for the terminating null charactor.
Without it, the last charactor will get dropped.
iree-org/iree,iree-org/iree,iree-org/iree,google/iree,iree-org/iree,google/iree,iree-org/iree,google/iree,google/iree,iree-org/iree,google/iree,google/iree,google/iree,iree-org/iree