Debug code to help catch the phantom nuke bug

Debug code to help catch the phantom nuke bug

Thu Apr 24 12:20:52 2008 Oops: bug in ../src/lib/subs/plnsub.c:1146

#3  0x080e64f4 in oops (msg=0x0, file=0x80ff1ca "../src/lib/subs/plnsub.c",
    line=1146) at ../src/lib/gen/log.c:141
#4  0x080bce6c in pln_damage (pp=0x8415b60, x=82, y=20, type=115 's',
    nukedamp=0x84158bc, noisy=1) at ../src/lib/subs/plnsub.c:1146
#5  0x080684f2 in launch_missile (pp=0x8415b60, sublaunch=0)
    at ../src/lib/commands/laun.c:281
#6  0x08067c79 in laun () at ../src/lib/commands/laun.c:111