Spin-off of bug 409 ('"xstls" does not work in Solaris 2.9 x86 2004/04'):
Xsun/Xprt etc. crash when "xstls -l" is used - the first execution results in a
X protocol error, the 2nd in a Xserver crash:

Steps to reproduce:
-- snip --
% Xprt -core -audit 4 -pn :6 &
[1] 1409
% (DISPLAY=localhost:6 xstls -l)
AUDIT: Mon Apr  5 07:08:34 2004: 1409 Xprt: client 1 connected from IP
::ffff:127.0.0.1 port 51328
X Error of failed request:  37
  Major opcode of failed request:  152 (ST)
  Minor opcode of failed request:  23 ()
  Serial number of failed request:  15
  Current serial number in output stream:  17
AUDIT: Mon Apr  5 07:08:34 2004: 1409 Xprt: client 1 disconnected
% (DISPLAY=localhost:6 xstls -l)
AUDIT: Mon Apr  5 07:08:40 2004: 1409 Xprt: client 1 connected from IP
::ffff:127.0.0.1 port 51840
X connection to localhost:6.0 broken (explicit kill or server shutdown).
[1]+  Segmentation Fault      (core dumped) ./Xprt -core -audit 4 -pn :6
% file core
core:           ELF 32-bit LSB core file 80386 Version 1, from 'Xprt'
% pstack core
core 'core' of 1409:    ./Xprt -core -audit 4 -pn :6
 d20f17a4 _free_unlocked (d1f68000) + 24
 d20f1766 free     (d1f68000) + 26
 d1f3d34a ProcSTTypeEnvFindAllLayoutEngines (82e0c70) + 15a
 d1f34367 ProcSTDispatch (82e0c70) + 37
 0806ff91 Dispatch () + 121
 08089f0e main     (6, 8047c64, 8047c80) + 4f9
 08093803 ???????? ()
-- snip --