Commit Briefs
in addblk(), only read data into buffer1 if we will compare it to buffer2
suggested by and ok naddy@
check a block's hash as well as its length before expensive comparisons
suggested by + ok naddy, and Ori agrees
fix off-by-one error in delta length; from ori
git9 commit fbb2fb7c87d8edf58e22c84f575853dc9de79ac4