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/stream.c b/stream.c
index 90c1e34f..951815a3 100644
--- a/stream.c
+++ b/stream.c
@@ -1443,7 +1443,7 @@ static struct stdio_mode do_parse_mode(val mode_str, struct stdio_mode m_dfl,
                                        val self)
 {
   struct stdio_mode m = stdio_mode_init_blank;
-  const wchar_t *ms = c_str(default_arg_strict(mode_str, lit("")), self);
+  const wchar_t *ms = c_str(default_arg_strict(mode_str, null_string), self);
   int nredir = 0;
 
   switch (*ms) {