- disabled the error message spam from the demo loop

These messages are useful for the playdemo CCMD, but since the demo loop is mostly non-functional anyway they better be disabled there.

src/d_main.cpp

@@ -1292,6 +1292,7 @@ void D_DoAdvanceDemo (void)
 			}
 			else
 			{
+				singledemo = false;
 				G_DeferedPlayDemo (demoname);
 				demosequence = 2;
 				break;

src/fragglescript/t_func.cpp

@@ -573,7 +573,7 @@ void FParser::SF_Include(void)
 
 void FParser::SF_Input(void)
 {
-	Printf(PRINT_BOLD,"input() function not available in doom\n");
+	Printf(PRINT_BOLD,"input() function not available in Doom\n");
 }
 
 //==========================================================================

src/g_game.cpp

@@ -2727,7 +2727,7 @@ void G_DoPlayDemo (void)
 	}
 	demo_p = demobuffer;
 
-	Printf ("Playing demo %s\n", defdemoname.GetChars());
+	if (singledemo) Printf ("Playing demo %s\n", defdemoname.GetChars());
 
 	C_BackupCVars ();		// [RH] Save cvars that might be affected by demo
 
@@ -2744,7 +2744,7 @@ void G_DoPlayDemo (void)
 		}
 		else
 		{
-			Printf (PRINT_BOLD, "%s", eek);
+			//Printf (PRINT_BOLD, "%s", eek);
 			gameaction = ga_nothing;
 		}
 	}