Function deprecated

src/e9tool/e9action.cpp:47–54

* Warning about deprecated syntax. */

 * Warning about deprecated syntax.
 */
static void deprecated(const char *syntax, const char *alt)
{
    static std::set<const char *, CStrCmp> seen;
    auto i = seen.insert(syntax);
    if (!i.second)
        return;
    warning("the `%s' syntax is deprecated; use `%s' instead", syntax, alt);
}


/*