some tabs to spaces

cd src
    grep -P -n '\t' *.c | grep -v "1:"
    cd ../include
    grep -P -n '\t' *.h | grep -v "1:"
    cd ..

side note: win/Qt/*.cpp are full of tabs

src/allmain.c

@@ -687,7 +687,7 @@ newgame(void)
                        * any artifacts */
     u_init();
 
-    l_nhcore_init();	/* create a Lua state that lasts until the end of the game */
+    l_nhcore_init();  /* create a Lua state that lasts until the end of the game */
     reset_glyphmap(gm_newgame);
 #ifndef NO_SIGNAL
     (void) signal(SIGINT, (SIG_RET_TYPE) done1);