[aravis] evaluator: debug evaluation error string.

[Emmanuel Pacaud <emmanuel src gnome org>]

commit 3fd2fd585c57428bf41b10535dc3bdb4695f4cf7
Author: Emmanuel Pacaud <emmanuel gnome org>
Date:   Tue Aug 31 16:52:17 2010 +0200

    evaluator: debug evaluation error string.

 src/arvevaluator.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)
---
diff --git a/src/arvevaluator.c b/src/arvevaluator.c
index 8a443e1..8ec6f48 100644
--- a/src/arvevaluator.c
+++ b/src/arvevaluator.c
@@ -931,6 +931,10 @@ arv_evaluator_set_error (GError **error, ArvEvaluatorStatus status)
 		     "Parsing error: %s",
 		     arv_evaluator_status_strings [MIN (status,
 							G_N_ELEMENTS (arv_evaluator_status_strings)-1)]);
+
+	arv_debug ("evaluator", "[Evaluator::evaluate] Error '%s'",
+		   arv_evaluator_status_strings [MIN (status,
+						      G_N_ELEMENTS (arv_evaluator_status_strings)-1)]);
 }
 
 double