Hello,
I'm currently reviewing a package which contains a couple of files with an
explicit license notice matching the NTP license:
https://opensource.org/licenses/NTP
A snippet from licensecheck:
xcb-imdkit/src/xlibi18n/XlcPubI.h: NTP License (legal disclaimer)
xcb-imdkit/src/xlibi18n/XlcPublic.h: NTP License (legal disclaimer)
xcb-imdkit/src/xlibi18n/lcCT.c: NTP License (legal disclaimer)
xcb-imdkit/src/xlibi18n/lcCharSet.c: NTP License (legal disclaimer)
xcb-imdkit/src/xlibi18n/lcUTF8.c: NTP License (legal disclaimer)