[geary] Vala 0.28 now warns about unused/unknown attributes: Bug #741077

[Jim Nelson <jnelson src gnome org>]

commit de59507b9d658e52f795551917ea0a0b988dd55d
Author: Jim Nelson <jim yorba org>
Date:   Wed Dec 3 11:50:03 2014 -0800

    Vala 0.28 now warns about unused/unknown attributes: Bug #741077

 src/engine/db/db-context.vala |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/engine/db/db-context.vala b/src/engine/db/db-context.vala
index c642323..ca77834 100644
--- a/src/engine/db/db-context.vala
+++ b/src/engine/db/db-context.vala
@@ -33,7 +33,7 @@ public abstract class Geary.Db.Context : BaseObject {
         return Db.throw_on_error(this, method, result, raw);
     }
     
-    [PrintFormat]
+    [PrintfFormat]
     protected void log(string fmt, ...) {
         if (!Logging.are_all_flags_set(Logging.Flag.SQL))
             return;