Fix whitespace issues in CHANGES and NEWS

Removed mixed tabs (converted tabs to eight spaces)

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5344)

NEWS

diff --git a/NEWS b/NEWS
index 909ffed..f47482e 100644
--- a/NEWS
+++ b/NEWS
@@ -381,7 +381,7 @@
       o Compression memory leak fixed.
       o Compression session resumption fixed.
       o Ticket and SNI coexistence fixes.
-      o Many fixes to DTLS handling. 
+      o Many fixes to DTLS handling.
 
   Major changes between OpenSSL 0.9.8k and OpenSSL 0.9.8l [5 Nov 2009]:
 
@@ -414,7 +414,7 @@
       o Add gcc 4.2 support.
       o Add support for AES and SSE2 assembly language optimization
         for VC++ build.
-      o Support for RFC4507bis and server name extensions if explicitly 
+      o Support for RFC4507bis and server name extensions if explicitly
         selected at compile time.
       o DTLS improvements.
       o RFC4507bis support.
@@ -594,7 +594,7 @@
   Major changes between OpenSSL 0.9.7a and OpenSSL 0.9.7b [10 Apr 2003]:
 
       o Security: counter the Klima-Pokorny-Rosa extension of
-        Bleichbacher's attack 
+        Bleichbacher's attack
       o Security: make RSA blinding default.
       o Configuration: Irix fixes, AIX fixes, better mingw support.
       o Support for new platforms: linux-ia64-ecc.
@@ -654,7 +654,7 @@
       o SSL/TLS: allow optional cipher choice according to server's preference.
       o SSL/TLS: allow server to explicitly set new session ids.
       o SSL/TLS: support Kerberos cipher suites (RFC2712).
-	Only supports MIT Kerberos for now.
+        Only supports MIT Kerberos for now.
       o SSL/TLS: allow more precise control of renegotiations and sessions.
       o SSL/TLS: add callback to retrieve SSL/TLS messages.
       o SSL/TLS: support AES cipher suites (RFC3268).
@@ -667,7 +667,7 @@
   Major changes between OpenSSL 0.9.6i and OpenSSL 0.9.6j [10 Apr 2003]:
 
       o Security: counter the Klima-Pokorny-Rosa extension of
-        Bleichbacher's attack 
+        Bleichbacher's attack
       o Security: make RSA blinding default.
       o Build: shared library support fixes.
 
@@ -779,7 +779,7 @@
 
   Major changes between OpenSSL 0.9.5 and OpenSSL 0.9.5a [1 Apr 2000]:
 
-      o Bug fixes for Win32, SuSE Linux, NeXTSTEP and FreeBSD 2.2.8 
+      o Bug fixes for Win32, SuSE Linux, NeXTSTEP and FreeBSD 2.2.8
       o Shared library support for HPUX and Solaris-gcc
       o Support of Linux/IA64
       o Assembler support for Mingw32
@@ -879,4 +879,3 @@
       o Extended ASN.1 parser routines
       o Adjustments of the source tree for CVS
       o Support for various new platforms
-