bug#41716: [PATCH] reader: Use invalid rather than illegal.

* libguile/read.c (scm_read_string_like_syntax): All characters are
permitted by law; some aren't valid in certain contexts.
---
 libguile/read.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libguile/read.c b/libguile/read.c
index 040a178348..122a643018 100644
--- a/libguile/read.c
+++ b/libguile/read.c
@@ -704,7 +704,7 @@ scm_read_string_like_syntax (int chr, SCM port, scm_t_read_opts *opts)
                 break;
             bad_escaped:
               scm_i_input_error (FUNC_NAME, port,
-                                 "illegal character in escape sequence: ~S",
+                                 "invalid character in escape sequence: ~S",
                                  scm_list_1 (SCM_MAKE_CHAR (c)));
             }
         }
-- 
2.26.2