From: copperwater <aosdict@gmail.com>
Date: Sun, 1 Mar 2020 20:20:16 +0000 (-0500)
Subject: Print out Lua error message when encountering an error
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=407f65aa8af6726c45c8212152388ab3cf834a71;p=nethack

Print out Lua error message when encountering an error

Rather than spitting out an error code number that is not particularly
useful. The string contains the line number and the nature of the error,
which is much more useful for debugging or reporting an issue.
---

diff --git a/src/nhlua.c b/src/nhlua.c
index b0addae53..098d74324 100644
--- a/src/nhlua.c
+++ b/src/nhlua.c
@@ -1094,8 +1094,8 @@ const char *fname;
 
     llret = luaL_loadbuffer(L, buf, strlen(buf), altfname);
     if (llret != LUA_OK) {
-        impossible("luaL_loadbuffer: Error loading %s (errcode %i)",
-                   altfname, llret);
+        impossible("luaL_loadbuffer: Error loading %s: %s",
+                   altfname, lua_tostring(L, -1));
         ret = FALSE;
         goto give_up;
     } else {