added kputs_pad(); implemented padding in kprintf(); put some padding tests in k_main()

git-svn-id: svn://anubis/hos/trunk@57 5b3e749e-e535-0410-8002-a9bb6afbdfca

kernel/boot/k_main.cc

@@ -6,6 +6,10 @@ extern "C" {
 void k_main()
 {
     kprintf("Hi from k_main()!\n");
+    kprintf("padded 8 hex: 0x%08x|\n", 0x42);
+    kprintf("padded -4 hex: 0x%-4x|\n", 0x42);
+    kprintf("padded  20 str: %20s|\n", "hi there");
+    kprintf("padded -20 str: %-20s|\n", "hi there");
 }
 
 } /* extern "C" */