regex-quote: \} -> } in EREs

* lib/regex-quote.c (ere_special): Don’t use \} in EREs,
as POSIX says the interpretation is undefined.
* tests/test-regex-quote.c (test_bre, test_ere):
Add tests for }.

1 files changed, 6 insertions, 0 deletions

diff --git a/ChangeLog b/ChangeLog
index 053fabde2a..ed21be142f 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,11 @@
 2022-06-04  Paul Eggert  <eggert@cs.ucla.edu>
 
+	regex-quote: \} -> } in EREs
+	* lib/regex-quote.c (ere_special): Don’t use \} in EREs,
+	as POSIX says the interpretation is undefined.
+	* tests/test-regex-quote.c (test_bre, test_ere):
+	Add tests for }.
+
 	dfa: do not warn about \] and \}
 	* lib/dfa.c (lex): Do not warn about \] and \}, since they’re
 	surely universally supported even though POSIX says their