(as when previous myrg_rkey failed, e.g. found nothing)


myisammrg/myrg_delete.c:
  style fix
myisammrg/myrg_locking.c:
  style fix
myisammrg/myrg_rnext.c:
  do not crash on rprev/rnext if no current table (as when previous rkey failed, e.g. found nothing)
myisammrg/myrg_rprev.c:
  do not crash on rprev/rnext if no current table (as when previous rkey failed, e.g. found nothing)
myisammrg/myrg_rrnd.c:
  style fix
myisammrg/myrg_rsame.c:
  style fix
myisammrg/myrg_update.c:
  style fix
myisammrg/myrg_write.c:
  style fix