Defines starting with `d' in quakeworld

• DEFAULT_SOUND_PACKET_ATTENUATION quakeworld/client/protocol.h:209
• DEFAULT_SOUND_PACKET_VOLUME quakeworld/client/protocol.h:208
• _DEF_BYTE_ quakeworld/client/common.h:23
• DEF_SAVEGLOBAL quakeworld/server/pr_comp.h:134
• dem_cmd quakeworld/client/cl_demo.c:59
• dem_read quakeworld/client/cl_demo.c:60
• dem_set quakeworld/client/cl_demo.c:61
• DI_NODIR quakeworld/server/sv_move.c:283
• DINPUT_BUFFERSIZE quakeworld/client/in_win.c:28
• DIST_EPSILON quakeworld/server/world.c:525
• DIST_NOT_SET quakeworld/client/r_local.h:85
• DPS_MAXSPANS quakeworld/client/d_polysa.s:33
• DWORD quakeworld/client/snd_mix.c:27
• DYNAMIC_SIZE quakeworld/client/zone.c:24