Wildcards are evaluated prior to applying `sudo` permissions. This
means that running `sudo find /some/path/*.conf` will fail if the user
does not have read permissions on `/some/path/` because the wildcard
cannot expand before `sudo` is applied and `*.conf` isn't a file.
The solution for this is to run the command in a subshell that has the
proper permissions (e.g. `sudo sh -c 'find /some/path/*.conf'`).
This modifies `Utils::FindFiles` to use a subshell thus allowing
wildcard support.
This fixes#2157
Signed-off-by: Jerry Aldrich <jerryaldrichiii@gmail.com>
