no trighraphs in comments

[r14883]

include/libfirm/ircons.h

@@ -756,7 +756,7 @@
  *    ir_node *new_Rot (ir_node *op, ir_node *k, ir_mode *mode)
  *    ---------------------------------------------------------
  *
- *    Rotates the operand to the (right??) by k bits.
+ *    Rotates the operand to the (right?) by k bits.
  *
  *    ir_node *new_Carry (ir_node *op1, ir_node *op2, ir_mode *mode)
  *    ------------------------------------------------------------

include/libfirm/typerep.h

@@ -726,7 +726,7 @@ typedef struct tp_op tp_op;
  * Returns the string for the type opcode.
  *
  * @param op  The type opcode to get the string from.
- * @return a string.  (@todo Null terminated???)
+ * @return a string.  (@todo Null terminated?)
  */
 const char *get_tpop_name (const tp_op *op);