Add more NEWS items for 2.17

["Joseph S. Myers" <joseph at codesourcery dot com>]

I've applied this patch to add items to NEWS for some 2.17 changes that 
seemed like they should be covered but weren't.  Note:

* Someone needs to review changes since 2.16 for other significant changes 
that also need entering in NEWS but aren't there at present.

* Both README and ports/README also need updating to reflect the merge of 
ports into the libc repository and release tarballs.

diff --git a/NEWS b/NEWS
index 196ae30..eb35f9d 100644
--- a/NEWS
+++ b/NEWS
@@ -23,6 +23,9 @@ Version 2.17
   14797, 14801, 14805, 14807, 14811, 14815, 14821, 14822, 14824, 14828,
   14831, 14835, 14838, 14856, 14863, 14865, 14866, 14868, 14869, 14871.
 
+* The add-on ports collection is now distributed in the "ports" subdirectory
+  of the main GNU C Library distribution, rather than separately.
+
 * Port to ARM AArch64 contributed by Linaro.
 
 * Support for STT_GNU_IFUNC symbols added for s390 and s390x.
@@ -51,6 +54,13 @@ Version 2.17
   New configure option --disable-build-nscd avoids building nscd itself;
   this is the default if --disable-nscd is used.
 
+* Improved support for cross-compilation, including cross-testing and
+  bootstrap builds without a previously built glibc.
+
+* New configure options --with-bugurl and --with-pkgversion, for
+  distributors to use to embed their bug-reporting and package version
+  information in --help and --version output.
+
 * The ttyname and ttyname_r functions on Linux now fall back to searching for
   the tty file descriptor in /dev/pts or /dev if /proc is not available.  This
   allows creation of chroots without the procfs mounted on /proc.

-- 
Joseph S. Myers
joseph@codesourcery.com