Adjust buffer size properly

If you're creating a char buffer to which you're planning to strcpy stuff, you
need to take into account in its length space for the terminating null
character.

In this case, we sometimes strcpy "YES" there, so we need it to be of size 4.

While I'm fixing this here, I'd bet:
1) we have this same issue in other places (size 3 buffers for noyes results);
2) we have a similar issue with other buffers;

src/amnuts230.c

@@ -6924,7 +6924,7 @@ help_amnuts_credits(UR_OBJECT user)
 void
 status(UR_OBJECT user)
 {
-  char ir[ROOM_NAME_LEN + 1], text2[ARR_SIZE], text3[ARR_SIZE], rm[3],
+  char ir[ROOM_NAME_LEN + 1], text2[ARR_SIZE], text3[ARR_SIZE], rm[4],
     qcall[USER_NAME_LEN];
   char email[82], nm[5], muzlev[20], arrlev[20];
   UR_OBJECT u;

src/includes/globals.h

@@ -607,7 +607,7 @@ const struct colour_codes_struct colour_codes[] = {
 /*
  * some general arrays being defined
  */
-const char *const noyes[] = { "NO", "YES" };
+const char *const noyes[] = { "NO", "YES" }; // 3 characters max
 const char *const offon[] = { "OFF", "ON" };
 const char *const minmax[] = { "OFF", "MIN", "MAX" };
 const char *const sex[] = { "Neuter", "Male", "Female" };