sockperf pp --tcp error and abort with burst -b1000 about sockperf HOT 6 CLOSED

Investigation note:
1. This issue was reproduced with vperf r1866;
2. Failure is appeared because of incorrect processing of data less than 12;
3. There is fix for this case in later versions;
4. successfully checked on r1870(vperf);
5. successfully checked on r33(sockperf);

Please don't use WontFix for this bug!

WontFix is only for bugs that we accept as bug and say that we'll not fix them. 
 (Hence, we agree to live with them).
For bugs, that you think they are not bugs you should set status to *Invalid*.
However, *this one is valid* (since the report relates to old vperf: 2.1.1801 
were the bug exists).  Hence, you should indicate it as *fixed*, if you think 
it was fixed as part of fixing other bug (probably, the code change for ret<0 ).
Anyhow, please verify it with other burst sizes.  Meny told me ~week ago that 
he encountered it with bursts of 10000.

r33 was verified using at least 1000 iterations with -b option in interval 
(1..100000)
r1870 was verified using at least 100 iterations with -b option in interval 
(1..100000)

then close it as Fixed.