Defines starting with `u' in quake2

• U_ANGLE1 321/qcommon/qcommon.h:307
• U_EFFECTS16 321/qcommon/qcommon.h:317
• U_EFFECTS8 321/qcommon/qcommon.h:310
• U_FRAME16 321/qcommon/qcommon.h:315
• U_MODEL 321/qcommon/qcommon.h:308
• U_MODEL2 321/qcommon/qcommon.h:318
• U_MODEL3 321/qcommon/qcommon.h:319
• U_MODEL4 321/qcommon/qcommon.h:320
• U_MOREBITS1 321/qcommon/qcommon.h:302
• U_MOREBITS2 321/qcommon/qcommon.h:311
• U_MOREBITS3 321/qcommon/qcommon.h:321
• U_NUMBER16 321/qcommon/qcommon.h:305
• U_OLDORIGIN 321/qcommon/qcommon.h:324
• U_ORIGIN3 321/qcommon/qcommon.h:306
• UPDATE_BACKUP 321/qcommon/qcommon.h:187
• UPDATE_MASK 321/qcommon/qcommon.h:189
• U_RENDERFX16 321/qcommon/qcommon.h:316
• U_RENDERFX8 321/qcommon/qcommon.h:309
• UseExternRCSId 321/rhapsody/snd_next.m:192
• UseStaticMsgType 321/rhapsody/snd_next.m:198
• U_SKIN16 321/qcommon/qcommon.h:325
• U_SKIN8 321/qcommon/qcommon.h:314
• U_SOLID 321/qcommon/qcommon.h:327
• U_SOUND 321/qcommon/qcommon.h:326