Nmap's changes have been moved from the NMAP_MODIFICATIONS file to the
Github repo at https://github.com/nmap/libdnet
The NMAP_MODIFICATIONS file instead will document only the changes made
to strip unused parts of the libdnet source prior to inclusion in Nmap.
MSVC preprocessor triggers #error in <stdio.h> if redefined
From MS doc:
Beginning with the UCRT in Visual Studio 2015 and Windows 10, snprintf is
no longer identical to _snprintf. The snprintf function behavior is now C99
standard compliant.
Closes#2255
