[BTS-1602] Add --ignore-collection flag to arangodump

site/content/3.12/components/tools/arangodump/examples.md

@@ -99,12 +99,19 @@ arangodump --dump-data false --include-system-collections true --output-director
 ```
 
 To restrict the dump to just specific collections, use the `--collection` option.
-It can be specified multiple times if required:
+You can specify it multiple times if required:
 
 ```
 arangodump --collection myusers --collection myvalues --output-directory "dump"
 ```
 
+To exclude specific collections from the dump, use the `--ignore-collection`
+option instead:
+
+```
+arangodump --ignore-collection myusers --ignore-collection myvalues --output-directory "dump"
+```
+
 Structural information for a collection is saved in files with name pattern
 `<collection-name>.structure.json`. Each structure file contains a JSON object
 with these attributes:

site/content/3.12/release-notes/version-3.12/whats-new-in-3-12.md

@@ -168,6 +168,16 @@ permanent connectivity issues:
 - `arangodb_network_connectivity_failures_dbservers_total`: Number of failed
   connectivity check requests sent to DB-Servers.
 
+## Client tools
+
+### arangodump
+
+_arangodump_ now supports a `--ignore-collection` startup option that you can
+specify multiple times to exclude the specified collections from a dump.
+
+It cannot be used together with the existing `--collection` option for specifying
+collections to include.
+
 ## Miscellaneous changes
 
 ### In-memory edge cache startup options and metrics