fix a typo [ci skip]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56339 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ext/win32ole/win32ole_variant.c

@@ -659,7 +659,7 @@ folevariant_vartype(VALUE self)
  *  Sets variant value to val. If the val type does not match variant value
  *  type(vartype), then val is changed to match variant value type(vartype)
  *  before setting val.
- *  Thie method is not available when vartype is VT_ARRAY(except VT_UI1|VT_ARRAY).
+ *  This method is not available when vartype is VT_ARRAY(except VT_UI1|VT_ARRAY).
  *  If the vartype is VT_UI1|VT_ARRAY, the val should be String object.
  *
  *     obj = WIN32OLE_VARIANT.new(1) # obj.vartype is WIN32OLE::VARIANT::VT_I4