docs: Document default for CLI --data (#6359)

cli/src/site/markdown/arguments.md

@@ -118,7 +118,7 @@ Advanced Options
 |       | \-\-dbDriverPath                      | \<path\>        | The path to the database driver; note, this does not need to be set unless the JAR is outside of the class path.                                                                                       | &nbsp;        |
 |       | \-\-dbPassword                        | \<password\>    | The password for connecting to the database.                                                                                                                                                           | &nbsp;        |
 |       | \-\-dbUser                            | \<user\>        | The username used to connect to the database.                                                                                                                                                          | &nbsp;        |
-| \-d   | \-\-data                              | \<path\>        | The location of the data directory used to store persistent data. This option should generally not be set.                                                                                             | &nbsp;        |
+| \-d   | \-\-data                              | \<path\>        | The location of the data directory used to store persistent data. This option should generally not be set.                                                                                             | /usr/local/var/dependencycheck if installed through brew (→ [formula](https://github.com/Homebrew/homebrew-core/blob/master/Formula/d/dependency-check.rb#L29)). Otherwise, the data directory is created inside the install directory i.e. as a sibbling to the `<install-dir>/bin`, `<install-dir>/lib` directories.       |
 |       | \-\-purge                             |                 | Delete the local copy of the NVD. This is used to force a refresh of the data.                                                                                                                         | &nbsp;        |
 |       | \-\-disableHostedSuppressions         |                 | Whether the usage of the hosted suppressions file will be disabled.                                                                                                                                    | false         |
 |       | \-\-hostedSuppressionsForceUpdate     |                 | Whether the hosted suppressions file will update regardless of the `noupdate` argument.                                                                                                                | false         |