Fix unreachable code in zstreamdump

82226e4f44 was intended to prevent a
warning from being printed in situations where it was inappropriate, but
accidentally disabled it entirely by setting featureflags in the wrong
case statement.

Coverity reported this as dead code.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Richard Yao <richard.yao@alumni.stonybrook.edu>
Closes #13946

cmd/zstream/zstream_dump.c

@@ -363,9 +363,6 @@ zstream_do_dump(int argc, char *argv[])
 				    BSWAP_64(drrb->drr_fromguid);
 			}
 
-			featureflags =
-			    DMU_GET_FEATUREFLAGS(drrb->drr_versioninfo);
-
 			(void) printf("BEGIN record\n");
 			(void) printf("\thdrtype = %lld\n",
 			    DMU_GET_STREAM_HDRTYPE(drrb->drr_versioninfo));
@@ -465,6 +462,9 @@ zstream_do_dump(int argc, char *argv[])
 				    BSWAP_64(drro->drr_maxblkid);
 			}
 
+			featureflags =
+			    DMU_GET_FEATUREFLAGS(drrb->drr_versioninfo);
+
 			if (featureflags & DMU_BACKUP_FEATURE_RAW &&
 			    drro->drr_bonuslen > drro->drr_raw_bonuslen) {
 				(void) fprintf(stderr,