revert https://github.com/osm2pgsql-dev/osm2pgsql/commit/e23dab3a32d91d7ea19e507ba3cdfbf147a92871.patch
remove when devel/fmt is updated to 11

Index: src/gen/gen-base.hpp
--- src/gen/gen-base.hpp.orig
+++ src/gen/gen-base.hpp
@@ -60,11 +60,11 @@ class gen_base_t (public)
 
     std::string context();
 
-    template <typename... TArgs>
-    void log_gen(fmt::format_string<TArgs...> format_str, TArgs &&...args)
+    template <typename... ARGS>
+    void log_gen(ARGS... args)
     {
         if (m_debug) {
-            log_debug(format_str, std::forward<TArgs>(args)...);
+            log_debug(args...);
         }
     }
 
