Use null_string throughout code base.

* eval.c (load): Use null_string instead of lit("").

* lib.c (obj_init): Likewise.

* match.c (LOG_MATCH, LOG_MISMATCH, do_txeval): Likewise.

* parser.c (regex_parse, lisp_parse_impl, find_matching_syms):
Likewise.

* stream.c (do_parse_mode): Likewise.

* txr.c (sysroot_init): Likewise.
(txr_main): Replace string(L"") with null_string.

1 files changed, 1 insertions, 1 deletions

diff --git a/eval.c b/eval.c
index dc0c97b3..5b1f4818 100644
--- a/eval.c
+++ b/eval.c
@@ -4663,7 +4663,7 @@ val load(val target)
 
   open_txr_file(path, &txr_lisp_p, &name, &stream, self);
 
-  if (match_str(or2(get_line(stream), lit("")), lit("#!"), nil))
+  if (match_str(or2(get_line(stream), null_string), lit("#!"), nil))
     parser_set_lineno(self, stream, two);
   else
     seek_stream(stream, zero, from_start_k);