Fix multiple --exclude arguments

[ajafff]

PR checklist

• Addresses an existing issue: #0000
• New feature, bugfix, or enhancement
  • Includes tests
• Documentation update

Overview of change:

Collect all --exclude options.
Fixes: #2855
Fixes: #2856
Fixes: #2855

Is there anything you'd like reviewers to focus on?

There are no test included, because I'm in a hurry right now.

CHANGELOG.md entry:

[sandersn]

I don't know commander -- does this still treat multiple --exclude arguments as an array? Or does it change the syntax to something like --exclude "prefix/path1/*,prefix/path2/*" ?

[ajafff]

Multiple --exclude as before. Tested it locally Am 01.06.2017 19:35 schrieb "Nathan Shively-Sanders" < notifications@github.com>:

…

I don't know commander -- does this still treat multiple --exclude arguments as an array? Or does it change the syntax to something like --exclude "prefix/path1/*,prefix/path2/*" ? — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#2858 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/ALaeKMGsZ0j7jBT_C2FhWYU0nlhHxCIEks5r_vZRgaJpZM4NtS1X> .

[adidahiya]

I added a test case, this fix seems to work