CHANGES: Add a change in the main section

[skip ci]

Author: fxlb

CHANGES

@@ -52,6 +52,7 @@ DayOfTheWeek, Month DD, YYYY / The Tcpdump Group
         Tru64 Unix}, SINIX and Ultrix.
       Fix compiling on GNU/Hurd.
       Make illumos build warning-free.
+      Makefile.in: Update the .c.o build rule (Remove hacks for old SunOS 4).
 
 DayOfTheWeek, Month DD, YYYY / The Tcpdump Group
   Summary for 4.99.5 tcpdump release (so far!)