Update to rra-c-util 5.10 and C TAP Harness 3.4

Update to rra-c-util 5.10:

* Add missing va_end to xasprintf implementation.
* Fix Perl test suite framework for new Automake relative paths.
* Improve portability to Kerberos included in Solaris 10.
* Use appropriate warning flags with Clang (currently not warning clean).

Update to C TAP Harness 3.4:

* Fix segfault in runtests with an empty test list.
* Display verbose test results with -v or C_TAP_VERBOSE.
* Test infrastructure builds cleanly with Clang warnings.
* Support comments and blank lines in test lists.

1 files changed, 10 insertions, 9 deletions

diff --git a/util/messages.h b/util/messages.h
index 8c731b7..cf91ba7 100644
--- a/util/messages.h
+++ b/util/messages.h
@@ -84,24 +84,25 @@ void message_handlers_reset(void);
  * argument list, and the errno setting if any.
  */
 void message_log_stdout(size_t, const char *, va_list, int)
-    __attribute__((__nonnull__));
+    __attribute__((__format__(printf, 2, 0), __nonnull__));
 void message_log_stderr(size_t, const char *, va_list, int)
-    __attribute__((__nonnull__));
+    __attribute__((__format__(printf, 2, 0), __nonnull__));
 void message_log_syslog_debug(size_t, const char *, va_list, int)
-    __attribute__((__nonnull__));
+    __attribute__((__format__(printf, 2, 0), __nonnull__));
 void message_log_syslog_info(size_t, const char *, va_list, int)
-    __attribute__((__nonnull__));
+    __attribute__((__format__(printf, 2, 0), __nonnull__));
 void message_log_syslog_notice(size_t, const char *, va_list, int)
-    __attribute__((__nonnull__));
+    __attribute__((__format__(printf, 2, 0), __nonnull__));
 void message_log_syslog_warning(size_t, const char *, va_list, int)
-    __attribute__((__nonnull__));
+    __attribute__((__format__(printf, 2, 0), __nonnull__));
 void message_log_syslog_err(size_t, const char *, va_list, int)
-    __attribute__((__nonnull__));
+    __attribute__((__format__(printf, 2, 0), __nonnull__));
 void message_log_syslog_crit(size_t, const char *, va_list, int)
-    __attribute__((__nonnull__));
+    __attribute__((__format__(printf, 2, 0), __nonnull__));
 
 /* The type of a message handler. */
-typedef void (*message_handler_func)(size_t, const char *, va_list, int);
+typedef void (*message_handler_func)(size_t, const char *, va_list, int)
+    __attribute__((__format__(printf, 2, 0)));
 
 /* If non-NULL, called before exit and its return value passed to exit. */
 extern int (*message_fatal_cleanup)(void);