CF 0.91.7-patch speed+1 rings

[Tero Jyri Michael Pelander <>]

When using only items that give speed+1 (not speed+2 or greater)
you are actually moving slower then without the ring.  Only when
you are carrying much weight you are faster with the ring as it
gives you the minimum speed.

*** common/living.OLD	Tue Jan 31 04:18:35 1995
--- common/living.c	Tue Jan 31 04:22:40 1995
***************
*** 783,790 ****
          SET_FLAG(op,FLAG_XRAYS);
        if(tmp->stats.exp) {
          if(tmp->stats.exp > 0) {
!           added_speed+=(float)tmp->stats.exp-(float)tmp->stats.exp/3.0 - 1.0;
!           bonus_speed+=1.0+(float)tmp->stats.exp/3.0;
          } else
            added_speed+=(float)tmp->stats.exp;
        }
--- 783,790 ----
          SET_FLAG(op,FLAG_XRAYS);
        if(tmp->stats.exp) {
          if(tmp->stats.exp > 0) {
!           added_speed+=((float)(2*tmp->stats.exp-2))/3.0;
!           bonus_speed+=((float)(tmp->stats.exp+2))/3.0;
          } else
            added_speed+=(float)tmp->stats.exp;
        }