Moulitest GNL (42_hard_test_one_big_fat_line)

[AndrewButok]

This test gives different results on diffrent PC's. On my MacBook Air '17 its ok, but on iMac in cluster this test give's error about output size.

[amp1ee]

I confirm, tests 41_hard_test_ and this particular test fail when used on 'Bash on Ubuntu on Windows'. The problem is when you try to read(fd, NULL, 10) it returns -1 instead of 0.