added explanation for cmds with no output

config.h

@@ -1,13 +1,15 @@
 //Modify this file to change what commands output to your statusbar, and recompile using the make command.
+//IMPORTANT: If a command is optionally empty, it should output \n in that case.
+//Otherwise the last nonzero value will be used instead. This is intended behaviour as it prevents flickering
 static const Block blocks[] = {
 	/*Icon*/	/*Command*/		/*Update Interval*/	/*Update Signal*/
-	{"music", 3600, 11},
+	{"music", 10, 11},
 	{"cat /tmp/mucc_time 2> /dev/null", 100, 3},
 	{"getpomminutesft", 100, 3},
 	{"getpomminutes", 100, 3},
 /*	{"weather", 3600, 5},*/
 	{"pacpackages", 100, 0},
-	{"cpu", 5, 0},
+	{"cpu", 2, 0},
 	// {"nettraf", 10, 0},
 	{"torrent", 6, 0},
 	{"getmail", 20, 13},

dwmblocks.c

@@ -67,8 +67,9 @@ void getcmds(int time)
 	for(int i = 0; i < LENGTH(blocks); i++)
 	{
 		current = blocks + i;
-		if ((current->interval != 0 && time % current->interval == 0) || time == -1)
+		if ((current->interval != 0 && time % current->interval == 0) || time == -1){
 			getcmd(current,statusbar[i]);
+		}
 	}
 }