Index: common/printf/printf_core.c
===================================================================
--- common/printf/printf_core.c	(revision 694ca3d6a8a1e66e61249ea01e128d7d66908dae)
+++ common/printf/printf_core.c	(revision 0d00e53ee0e707747c5d846467b5eddfa7a0e101)
@@ -504,5 +504,5 @@
 		switch (base) {
 		case 2:
-			/* Binary formating is not standard, but usefull */
+			/* Binary formating is not standard, but useful */
 			if (printf_putchar('0', ps) == 1)
 				counter++;