Update comment

...after 86cadd43f0 "rtl::Static -> function
local static"

Change-Id: I1013e7d38a85a596f279ac8107a4ac6d8b940950
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/113788
Tested-by: Jenkins
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>

i18nlangtag/source/languagetag/languagetag.cxx

@@ -49,7 +49,7 @@ struct myLtError
     ~myLtError() { if (p) lt_error_unref( p); }
 };
 
-// "statics" to be returned as const reference to an empty locale and string.
+// "static" to be returned as const reference to an empty locale.
 struct theEmptyLocale : public rtl::Static< lang::Locale, theEmptyLocale > {};
 }