lib: provide more information in case of failed LOOKUP.

* log.[ch]
  * mes_lookup: add a parameter with the name of the message list, print
    the name in case of failure.
  * LOOKUP macro: pass the name of the message list.

1 files changed, 2 insertions, 2 deletions

diff --git a/lib/log.h b/lib/log.h
index 1f9a6899..ee34a4ad 100644
--- a/lib/log.h
+++ b/lib/log.h
@@ -146,12 +146,12 @@ extern int zlog_reset_file (struct zlog *zl);
 extern int zlog_rotate (struct zlog *);
 
 /* For hackey massage lookup and check */
-#define LOOKUP(x, y) mes_lookup(x, x ## _max, y, "(no item found)")
+#define LOOKUP(x, y) mes_lookup(x, x ## _max, y, "(no item found)", #x)
 
 extern const char *lookup (const struct message *, int);
 extern const char *mes_lookup (const struct message *meslist, 
                                int max, int index,
-                               const char *no_item);
+                               const char *no_item, const char *mesname);
 
 extern const char *zlog_priority[];
 extern const char *zlog_proto_names[];