new hash function is faster than the old

src/common/kernel/item.h

@@ -321,7 +321,6 @@ enum {
 	R_AURAKULUM,
 	R_SEASERPENTHEAD,
   R_SPHERE_OF_INVISIBILITY,
-  R_TOADSLIME,
   R_BAG_OF_HOLDING,
   R_SACK_OF_CONSERVATION,
 	R_TACTICCRYSTAL,

src/common/util/command.c

@@ -93,6 +93,8 @@ do_command_i(const struct tnode * keys, void * u, const char * str, struct order
   return E_TOK_NOMATCH;
 }
 
+struct unit;
+struct order;
 extern char * getcommand(struct order * ord);
 extern char * unitname(struct unit * u);
 

src/common/util/goodies.c

@@ -61,10 +61,8 @@ unsigned int
 hashstring(const char* s)
 {
   unsigned int key = 0;
-	size_t i = strlen(s);
-
-	while (i>0) {
-		key = (s[--i] + key*37);
+  while (*s) {
+    key = key*37 + *s++;
   }
   return key % 0x7FFFFFFF;
 }