saving uncommitted changes in /etc prior to emerge run

pam.d/system-auth-winbind

@@ -0,0 +1,18 @@
+#%PAM-1.0
+# $Header: /var/cvsroot/gentoo-x86/net-fs/samba/files/3.6/system-auth-winbind.pam,v 1.1 2011/06/30 15:50:28 dagger Exp $
+
+auth        required      pam_env.so
+auth        sufficient    pam_winbind.so
+auth        sufficient    pam_unix.so likeauth nullok use_first_pass
+auth        required      pam_deny.so
+
+account     sufficient    pam_winbind.so
+account     required      pam_unix.so
+
+password    required      pam_cracklib.so retry=3
+password    sufficient    pam_unix.so nullok use_authtok md5 shadow
+password    required      pam_deny.so
+
+session     required      pam_mkhomedir.so skel=/etc/skel/ umask=0022 
+session     required      pam_limits.so
+session     required      pam_unix.so