[folks/folks-0-6] Raise a debug message rather than a warning when failing to parse bday field

[Guillaume Desmottes <gdesmott src gnome org>]

commit bdc430c704b2964e05ecc0bd3fdea67fd4caaa1a
Author: Guillaume Desmottes <guillaume desmottes collabora co uk>
Date:   Mon Apr 30 15:09:13 2012 +0200

    Raise a debug message rather than a warning when failing to parse bday field
    
    There is no much we can't do if other clients didn't respect the vCard spec.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=675155

 backends/telepathy/lib/tpf-persona.vala |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/backends/telepathy/lib/tpf-persona.vala b/backends/telepathy/lib/tpf-persona.vala
index 282b35d..5425e19 100644
--- a/backends/telepathy/lib/tpf-persona.vala
+++ b/backends/telepathy/lib/tpf-persona.vala
@@ -838,7 +838,7 @@ public class Tpf.Persona : Folks.Persona,
             }
           else
             {
-              warning ("Failed to parse new birthday string '%s'",
+              debug ("Failed to parse new birthday string '%s'",
                   new_birthday_str);
             }
         }