fix comment inaccuracy

git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@1650 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

src/winio.c

@@ -724,7 +724,7 @@ int get_escape_seq_kbinput(WINDOW *win, int *escape_seq, int
 }
 
 /* Return the equivalent arrow key value for the case-insensitive
- * letters A (up), B (down), C (left), and D (right).  These are common
+ * letters A (up), B (down), C (right), and D (left).  These are common
  * to many escape sequences. */
 int get_escape_seq_abcd(int kbinput)
 {