Fix fact scripts by adding quotes

[jaakkosipari]

At least some of the if statements broke when encountering multipart strings (like multiple files found with a find command line). I originally bumped into this when trying to figure out why fact script 0002 (find files with unknown owner) doesn't work.

Without modifications (and with an alien file around) it acts like this:

[vagrant@client1 ~]$ ls -l
total 1
-rw------- 1    4567 vagrant  0 Jan 14 11:52 my_unowned_file
[vagrant@client1 ~]$ sudo sh /usr/local/sbin/f0002.sh 
/usr/local/sbin/f0002.sh: line 9: [: too many arguments

By adding quotes it starts acting like it should.