check_file_test added negative option

[basvandervlies]

Only pass check if there is no result, eg:

• check_file_test -n -e /etc/node_status/reboot_node

This check will pass if the file is absent

[mej]

Two things on this.

First, I prefer that enhancements/new features be targetted at the dev branch rather than the master branch so that they can be tested and vetted before being fully merged. So if you could rebase this request against dev instead, that'd be great. :)

Second, I already have a convention for using -! to negate the result of a check. For consistency, and since it matches up with the goal of this check anyway -- that is, being an analog for the bash shell's built-in test command -- what would you think about changing your -n to -! instead?

[basvandervlies]

No problem I will rebase it to dev and change it to: -! . I used check_dmi_data_match as example it use -n | !

[mej]

I used check_dmi_data_match as example it use -n | !

Good point. I should fix that for consistency. That was one of the very early checks where the need for negating the overall check result, rather than the particular match string, became evident to me, so it predates the convention. Thanks for catching that! :-)