meta-ibm: prep for new override syntax

Change-Id: I9116ed7260e369136acb39eec15075db2d4dbeba
Signed-off-by: Adriana Kobylak <anoo@us.ibm.com>
diff --git a/meta-ibm/recipes-extended/sudo/sudo_%.bbappend b/meta-ibm/recipes-extended/sudo/sudo_%.bbappend
index f4254e7..338df39 100644
--- a/meta-ibm/recipes-extended/sudo/sudo_%.bbappend
+++ b/meta-ibm/recipes-extended/sudo/sudo_%.bbappend
@@ -2,7 +2,7 @@
 
 PACKAGECONFIG += "pam-wheel"
 
-do_install_append () {
+do_install:append () {
         # Allow members of the 'wheel' group to use passwordless sudo
         sed -i 's/# \(%wheel ALL=(ALL) NOPASSWD: ALL\)/\1/' ${D}${sysconfdir}/sudoers
 }