Memory leaks in 32 bit when shadowing

[uli42]

This happens when suspending a shadowing session.

==26999==ERROR: LeakSanitizer: detected memory leaks

Direct leak of 380 byte(s) in 1 object(s) allocated from:
    #0 0xb79e398c in __interceptor_realloc (/lib/i386-linux-gnu/libasan.so.5+0xeb98c)
    #1 0x633747 in xreallocarray /home/uli/work/nx/nx-libs/nx-X11/programs/Xserver/os/reallocarray.c:42
    #2 0x73bbf5 in nxagentRandRInitSizes /home/uli/work/nx/nx-libs/nx-X11/programs/Xserver/hw/nxagent/Extensions.c:347
    #3 0x73a5c1 in nxagentInitRandRExtension /home/uli/work/nx/nx-libs/nx-X11/programs/Xserver/hw/nxagent/Extensions.c:128
    #4 0x6ca718 in nxagentOpenScreen /home/uli/work/nx/nx-libs/nx-X11/programs/Xserver/hw/nxagent/Screen.c:1655
    #5 0x5aad7d in AddScreen ../../dix/dispatch.c:4177
    #6 0x6b2154 in InitOutput /home/uli/work/nx/nx-libs/nx-X11/programs/Xserver/hw/nxagent/Init.c:367
    #7 0x614b11 in main /home/uli/work/nx/nx-libs/nx-X11/programs/Xserver/dix/main.c:278
    #8 0xb6efeb40 in __libc_start_main ../csu/libc-start.c:308

Indirect leak of 152 byte(s) in 19 object(s) allocated from:
    #0 0xb79e398c in __interceptor_realloc (/lib/i386-linux-gnu/libasan.so.5+0xeb98c)
    #1 0x633747 in xreallocarray /home/uli/work/nx/nx-libs/nx-X11/programs/Xserver/os/reallocarray.c:42
    #2 0x73bc2b in nxagentRandRInitSizes /home/uli/work/nx/nx-libs/nx-X11/programs/Xserver/hw/nxagent/Extensions.c:354
    #3 0x73a5c1 in nxagentInitRandRExtension /home/uli/work/nx/nx-libs/nx-X11/programs/Xserver/hw/nxagent/Extensions.c:128
    #4 0x6ca718 in nxagentOpenScreen /home/uli/work/nx/nx-libs/nx-X11/programs/Xserver/hw/nxagent/Screen.c:1655
    #5 0x5aad7d in AddScreen ../../dix/dispatch.c:4177
    #6 0x6b2154 in InitOutput /home/uli/work/nx/nx-libs/nx-X11/programs/Xserver/hw/nxagent/Init.c:367
    #7 0x614b11 in main /home/uli/work/nx/nx-libs/nx-X11/programs/Xserver/dix/main.c:278
    #8 0xb6efeb40 in __libc_start_main ../csu/libc-start.c:308

SUMMARY: AddressSanitizer: 532 byte(s) leaked in 20 allocation(s).