libedit: make makelist compatible with solaris 10

solaris 10 tr doesn't support [:upper:] and [:lower:]; work around
since we only need ascii letters anyway

lib/libedit/src/makelist

@@ -127,7 +127,7 @@ case $FLAG in
 #
 -fh)
     cat $FILES | $AWK '/el_action_t/ { print $3 }' | \
-    sort | tr '[:lower:]' '[:upper:]' | $AWK '
+    sort | tr '[a-z]' '[A-Z]' | tr -d ' ' | $AWK '
 	BEGIN {
 	    printf("/* Automatically generated file, do not edit */\n");
 	    count = 0;