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$NetBSD: patch-subst.c,v 1.2 2020/03/17 21:59:48 rillig Exp $
Fix array subscript with char index.
https://lists.gnu.org/archive/html/bug-bash/2020-03/msg00056.html
--- subst.c.orig 2020-03-17 16:57:17.469764555 +0000
+++ subst.c
@@ -11294,7 +11294,7 @@ shell_expand_word_list (tlist, eflags)
case 'l':
case 'u':
case 'c':
- omap[l->word->word[oind]] = 1;
+ omap[(unsigned char) l->word->word[oind]] = 1;
if (opti == 0)
opts[opti++] = '-';
break;
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