kawa's install-info invocations are not failsafe against excludedocs or
read-only-netsharedpath-/usr/share installations; appending "|| :" to the
invocations in %post and %postun would fix it.
Additionally, "Requires(post): /sbin/install-info" and "Requires(postun):
/sbin/install-info" seem to be missing.
More info: http://fedoraproject.org/wiki/Packaging/ScriptletSnippets