Parentesize macros.

src/conio/keys.h

@@ -31,17 +31,17 @@
  * Note: If this box doesn't appear square, then you need to fix your tabs.	*
  ****************************************************************************/
 
-#define CIO_KEY_HOME      0x47 << 8
-#define CIO_KEY_UP        72   << 8
-#define CIO_KEY_END       0x4f << 8
-#define CIO_KEY_DOWN      80   << 8
-#define CIO_KEY_F(x)      (0x3a+x) << 8
-#define CIO_KEY_IC        0x52 << 8
-#define CIO_KEY_DC        0x53 << 8
-#define CIO_KEY_LEFT      0x4b << 8
-#define CIO_KEY_RIGHT     0x4d << 8
-#define CIO_KEY_PPAGE     0x49 << 8
-#define CIO_KEY_NPAGE     0x51 << 8
-#define CIO_KEY_ALT_F(x)      (0x67+x) << 8
+#define CIO_KEY_HOME      (0x47 << 8)
+#define CIO_KEY_UP        (72   << 8)
+#define CIO_KEY_END       (0x4f << 8)
+#define CIO_KEY_DOWN      (80   << 8)
+#define CIO_KEY_F(x)      ((0x3a+x) << 8)
+#define CIO_KEY_IC        (0x52 << 8)
+#define CIO_KEY_DC        (0x53 << 8)
+#define CIO_KEY_LEFT      (0x4b << 8)
+#define CIO_KEY_RIGHT     (0x4d << 8)
+#define CIO_KEY_PPAGE     (0x49 << 8)
+#define CIO_KEY_NPAGE     (0x51 << 8)
+#define CIO_KEY_ALT_F(x)      ((0x67+x) << 8)
 
 #define CIO_KEY_MOUSE    0x02ff