Make sure raft.segment_max_entries is a power of 2 in examples

(cherry picked from commit 170e14f)

Author: michaelklishin

docs/rabbitmq.conf.example

@@ -448,7 +448,7 @@
 ## NB: changing these on a node with existing data directory
 ##     can lead to DATA LOSS.
 ##
-# raft.segment_max_entries = 65535
+# raft.segment_max_entries = 65536
 # raft.wal_max_size_bytes = 1048576
 # raft.wal_max_batch_size = 32768
 # raft.snapshot_chunk_size = 1000000

test/config_schema_SUITE_data/rabbit.snippets

@@ -645,9 +645,9 @@ credential_validator.regexp = ^abc\\d+",
   %%
 
   {raft_segment_max_entries,
-   "raft.segment_max_entries = 65535",
+   "raft.segment_max_entries = 65536",
    [{ra, [
-      {segment_max_entries, 65535}
+      {segment_max_entries, 65536}
      ]}],
    []},