Fix problem differently, use

LANG=C tr 'a-z' 'A-Z'
for hypotetical case that script may generate non-ascii characters

lib/libedit/makelist

@@ -146,7 +146,7 @@ case $FLAG in
 #
 -fh)
     cat $FILES | $AWK '/el_action_t/ { print $3 }' | \
-    sort | tr '[:lower:]' '[:upper:]' | $AWK '
+    sort | LANG=C tr 'a-z' 'A-Z' | $AWK '
 	BEGIN {
 	    printf("/* Automatically generated file, do not edit */\n");
 	    printf("#ifndef _h_fcns_c\n#define _h_fcns_c\n");