zOs/TX/WK927C

* compare with mask segSize: *.*,64 DOES change
*       an old part TS to universal by range
*       -- but for new TS see wk927B
* somtimes maske segSize: *.*,64 changes part TS to universal by range
creDb trg 1
+ ok creDb A540769.TX.GENF(WK927t1)
creDb src 2
+ ok creDb A540769.TX.GENF(WK927s2)
*dbx c  ; $db.A927A mask DBTWAL
*check ts change to universal by range