[libsecret] Shut up new gcc warnings

[Stefan Walter <stefw src gnome org>]

commit 316df4e8ab0fbce27bf4d70f32c1a84148676489
Author: Stef Walter <stefw gnome org>
Date:   Tue Jan 22 16:07:45 2013 +0100

    Shut up new gcc warnings

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 8116961..d64b2b8 100644
--- a/configure.ac
+++ b/configure.ac
@@ -146,7 +146,7 @@ if test "$GCC" = "yes"; then
 		-Wall -Wmissing-declarations \
 		-Wmissing-prototypes -Wnested-externs -Wpointer-arith \
 		-Wdeclaration-after-statement -Wformat=2 -Winit-self \
-		-Waggregate-return -Wmissing-format-attribute"
+		-Waggregate-return"
 
 	for option in -Wmissing-include-dirs -Wundef; do
 		SAVE_CFLAGS="$CFLAGS"