How can I ignore whitespace in the NetBeans merge tool

Question

How do I ignore leading and trailing whitespace in NetBeans when resolving conflicts during a git merge.

Under Option > Miscellaneous > Diff you can set the diff tool to ignore leading an trailing whitespace but this does not take affect in the NetBeans merge tool.

git supports git merge -Xignore-all-space. Is there as way to pass this flag in NetBeans?

Git Merge and Fixing Mixed Spaces and Tabs with two Branches

Answer 1

Evan now (2018, 5 years later), that does not seem to be possible through NetBeans alone, if you consider its Git User Guide:

You cannot pass any merge flag to NetBeans, and you cannot set a git config.
That means a regular git merge -Xignore-all-space in command line remains the safest road.