fix for User not found error with Cronicle

[wangchaosjtu]

fixes "User does not exist" when the user is not a local user

[jhuckaby]

Thank you, but what bug is this fixing exactly? The output of the two commands for a non-existent user is exactly the same for me. This:

/usr/bin/getent passwd | grep nonexistentuser

And this:

/usr/bin/getent passwd nonexistentuser

Both output nothing, and the getpwnam() function returns null. Can you explain what this PR does?

[wangchaosjtu]

Thank you for getting back to me, Our company uses active directory and sssd to manage the users, if a user is not set up locally, getent passwd will not list it, thus grep will not work. getent passwd user will fetch the info from the directory.

[jhuckaby]

Ah ha, I see what you mean. Got it, thanks! Merging!