Description of problem:
It seems to me that the man page is not complete.
Personally, I had to read the code to understand.

Version-Release number of selected component (if applicable):
libvirt-sandbox-0.2.0-2

How reproducible:
man virt-sandbox

Steps to Reproduce:
1.
2.
3.

Actual results:
 -I HOST-PATH, --includefile=HOST-PATH
               Copy all files listed in inputfile into the appropriate temporary sandbox directories.

Expected results:
 -i GUEST-PATH=HOST-PATH, --include GUEST-PATH=HOST-PATH
 		File (HOST-PATH) to copy into custom dir
 (GUEST-PATH).
 
 -I HOST-PATH, --includefile=HOST-PATH
 		Copy all files listed in inputfile into the
 appropriate temporary sandbox directories. File should
 contain a line like: GUEST-PATH=HOST-PATH
 
 Directory (or subdirectory) of GUEST-PATH path
 must to exist in the guest filesystem (use --mount)

Additional info:
Maybe I misunderstood how to use inclusion, but it says even
more about what leadership should be written in detail.
P.S. On the use of the network too.