Fix T38743: Modal input feature appears to be missing from 2.70 test builds

Add 'pad *' in addition to '=' to toggle basic/advanced numinput modes.

source/blender/editors/util/numinput.c

@@ -334,6 +334,7 @@ bool handleNumInput(bContext *C, NumInput *n, const wmEvent *event)
 			utf8_buf = ascii;
 			break;
 		case EQUALKEY:
+		case PADASTERKEY:
 			if (!(n->flag & NUM_EDIT_FULL)) {
 				n->flag |= NUM_EDIT_FULL;
 				return true;