Docsp 17656 buildinfo command flag (#170)

* DOCSP-17656 buildinfo command flag

* Fix colons

* Add hyphen

Author: Dave

source/reference/options.txt

@@ -18,13 +18,10 @@ General Options
 
 .. program:: mongosh
 
-.. option:: --shell
+.. option:: --build-info
 
-   Enables the shell interface. If you invoke the :program:`mongosh`
-   command and specify a JavaScript file as an argument, or use
-   :option:`--eval <--eval>` to specify JavaScript on the command line,
-   the :option:`--shell <--shell>` option provides the user with a shell
-   prompt after the file finishes executing.
+   Returns a JSON-formatted document with information about the
+   :binary:`~bin.mongosh` build.
 
 .. option:: --eval <javascript>
 
@@ -59,6 +56,14 @@ General Options
    Skips all messages during startup (such as welcome messages and startup
    warnings) and goes directly to the prompt.
 
+.. option:: --shell
+
+   Enables the shell interface. If you invoke the :program:`mongosh`
+   command and specify a JavaScript file as an argument, or use
+   :option:`--eval <--eval>` to specify JavaScript on the command line,
+   the :option:`--shell <--shell>` option provides the user with a shell
+   prompt after the file finishes executing.
+
 .. option:: --verbose
 
    Increases the verbosity of the shell output during the connection