dtksh: update ksh to commit 47468f (fix musl compiler errors)

cde/programs/dtksh/dtksh.h

@@ -33,8 +33,6 @@
 #ifndef _Dtksh_dtksh_h
 #define _Dtksh_dtksh_h
 
-#include "nval.h"
-
 #define SUCCESS		0
 #define FAIL		(-1)
 

cde/programs/dtksh/xmcmds.c

@@ -174,7 +174,7 @@ static int Text_VarAndWidget(
                         int argc,
                         char *argv[]) ;
 static int Text_WidgetAndBoolean( 
-                        void (*func)(Widget w, int b),
+                        void (*func)(Widget w, char b),
                         int argc,
                         char *argv[]) ;
 static int Text_WidgetAndOneParam( 
@@ -4062,7 +4062,7 @@ do_XmTextGetString(
 
 static int
 Text_WidgetAndBoolean(
-        void (*func)(Widget w, int b),
+        void (*func)(Widget w, char b),
         int argc,
         char *argv[] )
 {