[Minor] Add consteval for fmt wrapper

diff --git a/src/client/rspamc.cxx b/src/client/rspamc.cxx
index 1f579c922ad7bf0c5c9825516a16ab156e62c55b..6060b621f4c46279b5fca0c8cf61f83058d4514b 100644 (file)
--- a/src/client/rspamc.cxx
+++ b/src/client/rspamc.cxx
@@ -346,7 +346,7 @@ struct rspamc_callback_data {
 };
 
 template<typename T>
-static auto emphasis_argument(const T &arg, const char *fmt_string = "{}") -> auto {
+static consteval auto emphasis_argument(const T &arg, const char *fmt_string = "{}") -> auto {
        if (tty) {
                return fmt::format(fmt::emphasis::bold, fmt_string, arg);
        }