Run fixfiles for howler-rsyslog

Without this selinux context for /usr/bin/howler-syslog-helper is

    system_u:object_r:bin_t:s0

which generates this AVC

    type=AVC msg=audit(1371376156.209:36058): avc:  denied  { search } for  pid=7391 comm="howler-syslog-h" name="howler" dev=dm-0 ino=299263 scontext=unconfined_u:system_r:syslogd_t:s0 tcontext=system_u:object_r:howler_var_lib_t:s0 tclass=dir