Lookin into installation logs, I see failure of scriptlets of ispell-american:

2014-10-02
16:24:43|install|ispell-czech|1.5-418.1|x86_64|root@oct|openSUSE-20140904-0|1930758ada6df5340191b95df4772cf73ca9210a|
# 2014-10-02 16:25:36 ispell-american-3.3.02-110.1.x86_64.rpm installed ok
# warning: %post(ispell-american-3.3.02-110.1.x86_64) scriptlet failed, exit
status 1
# warning: %postun(ispell-american-3.3.02-108.4.x86_64) scriptlet failed, exit
status 1
2014-10-02
16:25:36|install|ispell-american|3.3.02-110.1|x86_64|root@oct|openSUSE-20140904-0|fec0937bcd51bf08937668c92881a49ecb150b27|
# 2014-10-02 16:28:26 ispell-3.3.02-110.1.x86_64.rpm installed ok
# Updating /etc/sysconfig/ispell...
2014-10-02
16:28:26|install|ispell|3.3.02-110.1|x86_64|root@oct|openSUSE-20140904-0|ebd44a39cf07a54b1186a61b48361b0f6853e3fb|

Running it manually, I got:
oct:~ # /usr/lib/ispell/update 
No /etc/sysconfig/suseconfig found.
oct:~ # echo $?
1