PROBLEM:  (MGO05514A, QAR 73107)    (Patch ID: OSF435-300)
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This patch corrects two problems in AdvFS property list handling:
1) Creation of property lists entries in AdvFS filesets with no available
mcells will result in kernel memory fault (kmf).
Abbreviated stack:
  17 _XentMM()
  18 msfs_pl_pin_cur()
  19 msfs_pl_create_rec()
  20 msfs_pl_findhead_setdata()
  21 msfs_pl_set_entry()
  22 msfs_setproplist_int()
  23 msfs_setproplist()
  24 setproplist()
  25 proplist_syscall()
  26 syscall()
  27 _Xsyscall()
2) The get_proplist_entry function (used to disassemble the property list
buffer returned by the "getproplist" system call) returned incorrect name
length on property list names longer than 127 characters.