Update HiddenServiceVersion man-page entry to only accept either 2 or 3.

This patch updates the HiddenServiceVersion man-page entry to only
accept either 2 or 3 as argument and not a list of multiple versions.

See: https://bugs.torproject.org/25026

changes/bug25026

@@ -0,0 +1,4 @@
+  o Documentation:
+    - HiddenServiceVersion only accepts one version to be specified. This
+      version can either be version 2 or 3.  Closes ticket 25026; bugfix on
+      0.3.2.2-alpha.

doc/tor.1.txt

@@ -2670,7 +2670,7 @@ The following options are used to configure a hidden service.
     you're using a Tor controller that handles hidserv publishing for you.
     (Default: 1)
 
-[[HiddenServiceVersion]] **HiddenServiceVersion** __version__,__version__,__...__::
+[[HiddenServiceVersion]] **HiddenServiceVersion** **2**|**3**::
     A list of rendezvous service descriptor versions to publish for the hidden
     service. Currently, versions 2 and 3 are supported. (Default: 2)