Document --error-format argument to Cypher Shell (neo4j#2267)

Author: renetapopova

modules/ROOT/pages/cypher-shell.adoc

@@ -18,18 +18,10 @@ Alternatively, you can download it from link:https://neo4j.com/deployment-center
 The syntax for running Cypher Shell is:
 
 ----
- cypher-shell [-h] [-a ADDRESS]
-              [-u USERNAME] [--impersonate IMPERSONATE]
-              [-p PASSWORD] [--encryption {true,false,default}]
-              [-d DATABASE] [--access-mode {read,write}]
-              [--format {auto,verbose,plain}]
-              [-P PARAM] [--non-interactive] [--sample-rows SAMPLE-ROWS]
-              [--wrap {true,false}] [-v] [--driver-version]
-              [-f FILE] [--change-password] [--log [LOG-FILE]]
-              [--history HISTORY-BEHAVIOUR]
-              [--notifications] [--fail-fast | --fail-at-end]
-              [--idle-timeout IDLE-TIMEOUT]
-              [cypher]
+cypher-shell [-h] [-a ADDRESS] [-u USERNAME] [--impersonate IMPERSONATE] [-p PASSWORD] [--encryption {true,false,default}] [-d DATABASE] [--access-mode {read,write}]
+                    [--enable-autocompletions] [--format {auto,verbose,plain}] [-P PARAM] [--non-interactive] [--sample-rows SAMPLE-ROWS] [--wrap {true,false}] [-v]
+                    [--driver-version] [-f FILE] [--change-password] [--log [LOG-FILE]] [--history HISTORY-BEHAVIOUR] [--notifications] [--idle-timeout IDLE-TIMEOUT]
+                    [--error-format {gql,legacy,stacktrace}] [--fail-fast | --fail-at-end] [cypher]
 ----
 
 == Positional arguments
@@ -123,6 +115,10 @@ It can also be set using the environmental variable NEO4J_CYPHER_SHELL_HISTORY.
 |--idle-timeout IDLE-TIMEOUT
 |Closes the application after the specified amount of idle time in interactive mode. You can specify the duration using the format `<hours>h<minutes>m<seconds>s`, for example `1h` (1 hour), `1h30m` (1 hour 30 minutes), or `30m` (30 minutes).
 |disable
+
+|--error-format {gql,legacy,stacktrace}
+|Controls how errors are displayed.
+|legacy
 |===
 
 == Connection arguments