[contacts] Fix warning due to incompatible variable signedness

[Rob Bradford <rbradford src gnome org>]

commit 6d794c45e9335b1786b42dd16beffbbf09106a08
Author: Rob Bradford <rob linux intel com>
Date:   Mon Jun 8 16:17:00 2009 +0100

    Fix warning due to incompatible variable signedness
---
 src/contacts-utils.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/src/contacts-utils.c b/src/contacts-utils.c
index 8d510f8..e019e73 100644
--- a/src/contacts-utils.c
+++ b/src/contacts-utils.c
@@ -514,7 +514,7 @@ contacts_choose_photo (GtkWidget *button, EContact *contact)
 			if (contact) {
 				EContactPhoto new_photo;
 				guchar **data;
-				int *length;
+				gsize *length;
 #if HAVE_PHOTO_TYPE
 				new_photo.type = E_CONTACT_PHOTO_TYPE_INLINED;
 				data = &new_photo.data.inlined.data;