Fix sample fstab file in GitLab HA docs
Fix sample fstab file in GitLab HA docs

The nobootwait option is no longer a valid option in Ubuntu 16.04.
Use nofail instead:

https://askubuntu.com/questions/786928/ubuntu-16-04-fstab-fails-with-nobootwait

dreampet/gitlab,axilleas/gitlabhq,iiet/iiet-git,axilleas/gitlabhq,mmkassem/gitlabhq,axilleas/gitlabhq,jirutka/gitlabhq,stoplightio/gitlabhq,iiet/iiet-git,stoplightio/gitlabhq,stoplightio/gitlabhq,stoplightio/gitlabhq,jirutka/gitlabhq,mmkassem/gitlabhq,mmkassem/gitlabhq,jirutka/gitlabhq,dreampet/gitlab,dreampet/gitlab,dreampet/gitlab,mmkassem/gitlabhq,axilleas/gitlabhq,jirutka/gitlabhq,iiet/iiet-git,iiet/iiet-git