Support for Comments in Exclusion File

[mhd-jalilvand]

Description:
I would like to request support for comments in the exclusion file when using sshuttle with the -X option. Currently, comments are not recognized, and it would be helpful to have the ability to add comments for better organization and documentation purposes.

Expected Behavior:
I expect that lines starting with a designated character, such as "#" or "//", should be treated as comments and ignored by sshuttle when parsing the exclusion file.

Steps to Reproduce:

1. Create an exclusion file with domains to exclude.
2. Add comment lines starting with a designated character.
3. Run sshuttle with the exclusion file using the -X option.
4. Observe that comments are not ignored, and the tool tries to interpret them as domains.

Additional Information:

• I have seen other tools and scripts that support comments in configuration files using a designated character at the beginning of the line.
• The ability to include comments would greatly improve the readability and maintainability of exclusion files.

Environment:

• sshuttle version: 1.1.1
• Operating System: Ubuntu

Please let me know if any further information is needed. Thank you for considering this feature request!