cutil: Fix typos in comments

All of them were found by codespell.

Signed-off-by: Stefan Weil <sw@weilnetz.de>

Author: stweil

cutil/listio.h

@@ -37,7 +37,7 @@
 #include "oldlist.h"
 
 /*----------------------------------------------------------------------------
-        Public Funtion Prototypes
+        Public Function Prototypes
 --------------------------------------------------------------------------*/
 LIST read_list(const char *filename);
 #endif

cutil/oldlist.cpp

@@ -407,7 +407,7 @@ LIST s_adjoin(LIST var_list, void *variable, int_compare compare) {
  *
  *  Search list, return NIL_LIST if not found. Return the list starting from
  *  the item if found.  The compare routine "is_equal" is passed in as
- *  the third paramter to this routine.   If the value NULL is supplied
+ *  the third parameter to this routine.   If the value NULL is supplied
  *  for is_equal, the is_key routine will be used.
  **********************************************************************/
 LIST search(LIST list, void *key, int_compare is_equal) {

cutil/oldlist.h

@@ -234,7 +234,7 @@ first_node (list_rest (l))
 first_node (list_rest (list_rest (l)))
 
 /*----------------------------------------------------------------------
-          Public Funtion Prototypes
+          Public Function Prototypes
 ----------------------------------------------------------------------*/
 int count(LIST var_list);