Fix CLUSTER SHARDS example, empty hostname will not be displayed

It was fixed in 7.0.6, see redis/redis#11297

Author: enjoy-binbin

commands/cluster-shards.md

@@ -66,14 +66,12 @@ Which endpoint is set is determined by the `cluster-preferred-endpoint-type` con
           6) "127.0.0.1"
           7) "endpoint"
           8) "127.0.0.1"
-          9) "hostname"
-         10) ""
-         11) "role"
-         12) "master"
-         13) "replication-offset"
-         14) (integer) 72156
-         15) "health"
-         16) "online"
+          9) "role"
+         10) "master"
+         11) "replication-offset"
+         12) (integer) 72156
+         13) "health"
+         14) "online"
       2)  1) "id"
           2) "1901f5962d865341e81c85f9f596b1e7160c35ce"
           3) "port"
@@ -82,14 +80,12 @@ Which endpoint is set is determined by the `cluster-preferred-endpoint-type` con
           6) "127.0.0.1"
           7) "endpoint"
           8) "127.0.0.1"
-          9) "hostname"
-         10) ""
-         11) "role"
-         12) "replica"
-         13) "replication-offset"
-         14) (integer) 72156
-         15) "health"
-         16) "online"
+          9) "role"
+         10) "replica"
+         11) "replication-offset"
+         12) (integer) 72156
+         13) "health"
+         14) "online"
 2) 1) "slots"
    2) 1) (integer) 10923
       2) (integer) 16383
@@ -102,14 +98,12 @@ Which endpoint is set is determined by the `cluster-preferred-endpoint-type` con
           6) "127.0.0.1"
           7) "endpoint"
           8) "127.0.0.1"
-          9) "hostname"
-         10) ""
-         11) "role"
-         12) "master"
-         13) "replication-offset"
-         14) (integer) 72156
-         15) "health"
-         16) "online"
+          9) "role"
+         10) "master"
+         11) "replication-offset"
+         12) (integer) 72156
+         13) "health"
+         14) "online"
       2)  1) "id"
           2) "6daa25c08025a0c7e4cc0d1ab255949ce6cee902"
           3) "port"
@@ -118,14 +112,12 @@ Which endpoint is set is determined by the `cluster-preferred-endpoint-type` con
           6) "127.0.0.1"
           7) "endpoint"
           8) "127.0.0.1"
-          9) "hostname"
-         10) ""
-         11) "role"
-         12) "replica"
-         13) "replication-offset"
-         14) (integer) 72156
-         15) "health"
-         16) "online"
+          9) "role"
+         10) "replica"
+         11) "replication-offset"
+         12) (integer) 72156
+         13) "health"
+         14) "online"
 3) 1) "slots"
    2) 1) (integer) 5461
       2) (integer) 10922
@@ -138,14 +130,12 @@ Which endpoint is set is determined by the `cluster-preferred-endpoint-type` con
           6) "127.0.0.1"
           7) "endpoint"
           8) "127.0.0.1"
-          9) "hostname"
-         10) ""
-         11) "role"
-         12) "master"
-         13) "replication-offset"
-         14) (integer) 72156
-         15) "health"
-         16) "online"
+          9) "role"
+         10) "master"
+         11) "replication-offset"
+         12) (integer) 72156
+         13) "health"
+         14) "online"
       2)  1) "id"
           2) "da6d5847aa019e9b9d2a8aa24a75f856fd3456cc"
           3) "port"
@@ -154,12 +144,10 @@ Which endpoint is set is determined by the `cluster-preferred-endpoint-type` con
           6) "127.0.0.1"
           7) "endpoint"
           8) "127.0.0.1"
-          9) "hostname"
-         10) ""
-         11) "role"
-         12) "replica"
-         13) "replication-offset"
-         14) (integer) 72156
-         15) "health"
-         16) "online"
+          9) "role"
+         10) "replica"
+         11) "replication-offset"
+         12) (integer) 72156
+         13) "health"
+         14) "online"
 ```