fread memory overwrite fixed - thanks valgrind
fread memory overwrite fixed - thanks valgrind

vlulla/data.table,Rdatatable/data.table,vlulla/data.table,Rdatatable/data.table,Rdatatable/data.table,jangorecki/data.table,jangorecki/data.table,jangorecki/data.table,vlulla/data.table,jangorecki/data.table,vlulla/data.table,Rdatatable/data.table