Set the conffile value before executing the code

Signed-off-by: Julien Danjou <julien@danjou.info>

luaa.c

@@ -853,13 +853,17 @@ luaA_loadrc(const char *confpath, bool run)
     {
         if(run)
         {
+            /* Set the conffile right now so it can be used inside the
+             * configuration file. */
+            globalconf.conffile = a_strdup(confpath);
             if(lua_pcall(globalconf.L, 0, LUA_MULTRET, 0))
-                fprintf(stderr, "%s\n", lua_tostring(globalconf.L, -1));
-            else
             {
-                globalconf.conffile = a_strdup(confpath);
-                return true;
+                fprintf(stderr, "%s\n", lua_tostring(globalconf.L, -1));
+                /* An error happened, so reset this. */
+                globalconf.conffile = NULL;
             }
+            else
+                return true;
         }
         else
         {