CHANGES: Add change(s) backported to 4.99

[skip ci]

Author: fxlb

CHANGES

@@ -134,6 +134,7 @@ DayOfTheWeek, Month DD, YYYY / The Tcpdump Group
         as a cross-compile if it doesn't work.
       Autoconf: Use AC_SYS_YEAR2038_RECOMMENDED when possible if the
         environment variable BUILD_YEAR2038 = yes (via autogen.sh).
+      Autoconf: Avoid incorrectly include the libpcap's config.h.
 
 Friday, August 30, 2024 / The Tcpdump Group
   Summary for 4.99.5 tcpdump release