Removed some redundant {} blocks when computing btype=11 code lengths.

- if(o==16){c=h[i-1];}if(o==17){n++;}if(o>17){k=11;n=7;}k+=A(n);j=0;w(j++<k){h[i++]=c;}
+ if(o==16)c=h[i-1];if(o==17)n++;if(o>17){k=11;n=7;}k+=A(n);j=0;w(j++<k)h[i++]=c;
Operator abuse.

* has higher precedence than +.

- e=((1<<(i-1))*10)+3+((o-j+4)*(1<<i));
+ e=(1<<(i-1))*10+3+(o-j+4)*(1<<i);
Comma!