Hide alternate Great Wolf variation from help as it's only a visual variation

changelog

@@ -27,6 +27,8 @@ Version 1.12.0+dev:
  * Units:
    * Assigned capitalized translatable names to Walking Corpse and Soulless
      variations (bug #22902).
+   * Hid alternate Great Wolf variation from help as it is identical to the
+     default variation stats-wise.
  * WML engine:
    * Fixed nested macros emitting incorrect bindings to the default 'wesnoth'
      textdomain at the end of a substitution instead of the parent textdomain,

data/core/units/monsters/Wolf_Great.cfg

@@ -67,6 +67,7 @@
     [variation]
         variation_name=red
         inherit=yes
+        hide_help=yes
         image="units/monsters/wolf-great+red.png"
 
         [movement_anim]