tr_init: disable r_clear by default

Author: illwieckz

src/engine/renderer/tr_init.cpp

@@ -1177,7 +1177,7 @@ ScreenshotCmd screenshotPNGRegistration("screenshotPNG", ssFormat_t::SSF_PNG, "p
 		r_logFile = ri.Cvar_Get( "r_logFile", "0", CVAR_CHEAT );
 		r_debugSurface = ri.Cvar_Get( "r_debugSurface", "0", CVAR_CHEAT );
 		r_nobind = ri.Cvar_Get( "r_nobind", "0", CVAR_CHEAT );
-		r_clear = ri.Cvar_Get( "r_clear", "1", 0 );
+		r_clear = ri.Cvar_Get( "r_clear", "0", 0 );
 		r_offsetFactor = ri.Cvar_Get( "r_offsetFactor", "-1", CVAR_CHEAT );
 		r_offsetUnits = ri.Cvar_Get( "r_offsetUnits", "-2", CVAR_CHEAT );