Language servers like clangd generate a .cache directory to store
compilation cache. Tell Git to ignore this directory when staging files.
Reviewed by: markj
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D38937
Start tracking upstream development of hostapd and wpa_supplicant more
closely. The last upstream release is from August 2019. Keeping up
with upstream development will make importing releases less exciting.
Discussed with: cy
Sponsored by: Rubicon Communications, LLC ("Netgate")
