fix changelog entry

git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@3903 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

ChangeLog

@@ -7,7 +7,7 @@ CVS code -
   input_tab()
 	- Since the field precision operator used in the sprintf() uses
 	  ints and not size_t's, replace it with two strncpy()s, which
-	  use size_t's. (DLR)
+	  use size_t's, and a null termination. (DLR)
 - help.c:
   parse_help_input()
 	- Add 'E' and 'e' as aliases for Exit, for consistency with the