Document --language option

doc/userguide/src/Appendices/CommandLineOptions.rst

@@ -14,6 +14,11 @@ Command line options for test execution
 ---------------------------------------
 
   --rpa                   Turn on `generic automation`_ mode.
+  --language <lang>       `Activate the specified language <Localization_>`__.
+                          `lang` can be a name or a code of a
+                          `built-in language <Translations_>`__
+                          to active or a path or a module name of a custom
+                          language file.
   -F, --extension <value>  `Parse only these files`_ when executing a directory.
   -N, --name <name>       `Sets the name`_ of the top-level test suite.
   -D, --doc <document>    `Sets the documentation`_ of the top-level test suite.

src/robot/run.py

@@ -89,6 +89,9 @@
                           terminology so that "test" is replaced with "task"
                           in logs and reports. By default the mode is got
                           from test/task header in data files.
+    --language lang *     Activate the specified language. `lang` can be a name
+                          or a code of a built-in language to active or a path
+                          or a module name of a custom language file.
  -F --extension value     Parse only files with this extension when executing
                           a directory. Has no effect when running individual
                           files or when using resource files. If more than one
@@ -98,7 +101,6 @@
  -N --name name           Set the name of the top level suite. By default the
                           name is created based on the executed file or
                           directory.
-   --language lang *      TODO
  -D --doc documentation   Set the documentation of the top level suite.
                           Simple formatting is supported (e.g. *bold*). If the
                           documentation contains spaces, it must be quoted.