Update def value of server.bolt.unix_socket_path

Author: NataliaIvakina

modules/ROOT/pages/configuration/configuration-settings.adoc

@@ -1463,7 +1463,7 @@ a|The absolute path of the file for use with the Unix Domain Socket interface. T
 |Valid values
 a|A path.
 |Default value
-m|+++None+++
+m|++++++
 |===
 
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