Fixed infobar_printf interface function, security problem with string format

src/plugins/scripts/perl/weechat-perl.c

@@ -328,6 +328,7 @@ static XS (XS_weechat_print_infobar)
     
     perl_plugin->infobar_printf (perl_plugin,
                                  SvIV (ST (0)),
+                                 "%s",
                                  SvPV (ST (1), integer));
     
     XSRETURN_YES;

src/plugins/scripts/python/weechat-python.c

@@ -242,7 +242,7 @@ weechat_python_print_infobar (PyObject *self, PyObject *args)
         return Py_BuildValue ("i", 0);
     }
     
-    python_plugin->infobar_printf (python_plugin, delay, message);
+    python_plugin->infobar_printf (python_plugin, delay, "%s", message);
     
     return Py_BuildValue ("i", 1);
 }

src/plugins/scripts/ruby/weechat-ruby.c

@@ -330,7 +330,7 @@ weechat_ruby_print_infobar (VALUE class, VALUE delay, VALUE message)
     c_delay = FIX2INT (delay);
     c_message = STR2CSTR (message);
     
-    ruby_plugin->infobar_printf (ruby_plugin, c_delay, c_message);
+    ruby_plugin->infobar_printf (ruby_plugin, c_delay, "%s", c_message);
     
     return INT2FIX (1);
 }