CmdNews: Version methods should generate all items, regardless of priority

Drop the flag about full/abbreviated report being passed to the version
methods. The methods shold just generate the NewsItem objects, the
CmdNews::execute will take care of displaying only the ones matching the
verbosity level the user selected.

src/commands/CmdNews.h

@@ -45,7 +45,7 @@ class CmdNews : public Command
 public:
   CmdNews ();
   int execute (std::string&);
-  void version2_6_0 (bool, std::vector<NewsItem>&);
+  void version2_6_0 (std::vector<NewsItem>&);
 };
 
 #endif