hpcc-systems/HPCC-Platform — pull request #3636 by jakesmith (2012-11-06 16:46:50+00:00)
Title: HPCC-7902 Csvread,opt headnig crash

If a csv read has OPT and HEADING attributes and the logical file
is missing, a crash will occur inside the master serialization
code for the activity

Signed-off-by: Jake Smith