vlog: Mark format_log_message() as taking a printf format string.

Found by -Wmissing-format-attribute.

diff --git a/lib/vlog.c b/lib/vlog.c
index ddfab7614b37bbfa53a6931e949ab74112fd5b5e..0ebe890f454ff62ce0a906dd4fd38a514a7ed3be 100644 (file)
--- a/lib/vlog.c
+++ b/lib/vlog.c
@@ -1,4 +1,4 @@
-/* Copyright (c) 2008 The Board of Trustees of The Leland Stanford
+/* Copyright (c) 2008, 2009 The Board of Trustees of The Leland Stanford
  * Junior University
  * 
  * We are making the OpenFlow specification and associated documentation
@@ -98,6 +98,11 @@ static long long int boot_time;
 static char *log_file_name;
 static FILE *log_file;
 
+static void format_log_message(enum vlog_module, enum vlog_level,
+                               enum vlog_facility, unsigned int msg_num,
+                               const char *message, va_list, struct ds *)
+    PRINTF_FORMAT(5, 0);
+
 /* Searches the 'n_names' in 'names'.  Returns the index of a match for
  * 'target', or 'n_names' if no name matches. */
 static size_t