portage upgrade today :)

[ebuild     U ] app-shells/bash-3.1_p11 [3.1_p10] USE="-afs -bashlogger -build -nls -unicode" 1 kB
[ebuild     U ] sys-apps/portage-2.1_pre5-r4 [2.1_pre5-r2] USE="-build -doc" 0 kB
*** Portage will stop merging at this point and reload itself, then resume the merge.
[ebuild     U ] sys-libs/pam-0.78-r5 [0.78-r4] USE="berkdb -nis -pam_chroot -pam_console -pam_timestamp -pwdb" 85 kB
[ebuild     U ] x11-libs/pango-1.10.4 [1.10.3] USE="-debug -doc" 1,157 kB
[ebuild     U ] x11-libs/gtk+-2.8.13 [2.8.12] USE="jpeg -debug -doc -tiff -xinerama" 11,802 kB
[ebuild     U ] net-misc/openssh-4.3_p2-r1 [4.3_p1] USE="pam tcpd -X509 -chroot -hpn -ipv6 -kerberos -ldap -libedit -sftplogging -skey -smartcard -static" 919 kB

bash が更新できず。checksum が違うってさ。