more userspace stuff

programs/main.c

@@ -1,8 +1,6 @@
 #include <stdio.h>
-#include <stdlib.h>
 
-int main(int argc, char** argv) {
-    printf("Hello, World from RockOS!\n");
-    
+int main() {
+    printf("RockOS booting...\n");
     return 0;
 }