add type hint to log_message

src/logging/logging.c

@@ -134,6 +134,7 @@ void log_msg(const char *msg, enum cats_log_level loglevel);
 void log_msg_simple(const char *msg, enum cats_log_level loglevel);
 
 // logging wrapper function
+__attribute__ ((__format__ (__printf__, 2, 3)))
 void log_message(enum cats_log_level level, const char *fmt, ...)
 {
         if (level < internal_current_log_level) return;

src/logging/logging.h

@@ -62,6 +62,7 @@ void logging_set_mpi_rank(int mpi_world_rank);
 
 void logging_set_module_name(const char *name);
 
+__attribute__ ((__format__ (__printf__, 2, 3)))
 void log_message(enum cats_log_level level, const char *fmt, ...);
 
 enum cats_log_level get_log_level(void);