libcom_err: fix suggest-attribute=format -Wall warnings

Signed-off-by: Theodore Ts'o <tytso@mit.edu>

diff --git a/lib/et/com_err.c b/lib/et/com_err.c
index d38998a..7294c6d 100644 (file)
--- a/lib/et/com_err.c
+++ b/lib/et/com_err.c
@@ -62,7 +62,8 @@ default_com_err_proc (const char *whoami, errcode_t code, const
     fflush(stderr);
 }
 
-typedef void (*errf) (const char *, errcode_t, const char *, va_list);
+typedef void (*errf) (const char *, errcode_t, const char *, va_list)
+        COM_ERR_ATTR((format(printf, 3, 0)));
 
 errf com_err_hook = default_com_err_proc;