[patches] Set log filename properly for ChangeLog.eglibc

[Jim Blandy <jimb@xxxxxxxxxxxxxxxx>]

Any objections to placing the following magic in ChangeLog.eglibc?
With this, typing 'C-x 4 a' in Emacs in the ChangeLog.eglibc buffer
adds the new entry to the top of that file, not to ChangeLog.

Index: ChangeLog.eglibc
===================================================================
--- ChangeLog.eglibc	(revision 160988)
+++ ChangeLog.eglibc	(working copy)
@@ -263,3 +263,7 @@
 	* manual/errno.texi (error_print_progname): Remove space between
 	"error_print_progname" and ")".
 
+
+Local Variables:
+change-log-default-name: "ChangeLog.eglibc"
+End: