BZ#16469: don't drop trailing dot in res_nquerydomain(..., name, NULL, ...)

If we drop it here, we will fail to detect a duplicate trailing dot
later on.  Retaining, OTOH, has no ill effects whatsoever, and it even
saves us the trouble of copying the domain name minus the trailing
dot, like we used to do.

for ChangeLog

	[BZ #16469]
	* NEWS: Update.
	* resolv/res_query.c (__libc_res_nquerydomain): Retain
	trailing dot.
	* posix/tst-getaddrinfo5.c: New.
	* posix/Makefile (tests): Add it.

1 files changed, 9 insertions, 0 deletions

diff --git a/ChangeLog b/ChangeLog
index 785189dd8e..650d11892d 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,14 @@
 2014-11-21  Alexandre Oliva <aoliva@redhat.com>
 
+	[BZ #16469]
+	* NEWS: Update.
+	* resolv/res_query.c (__libc_res_nquerydomain): Retain
+	trailing dot.
+	* posix/tst-getaddrinfo5.c: New.
+	* posix/Makefile (tests): Add it.
+
+2014-11-21  Alexandre Oliva <aoliva@redhat.com>
+
 	[BZ #14498]
 	* NEWS: Fixed.
 	* nss/nss_db/db-XXX.c (_nss_db_get##name##_r): Update hidx