trim parts irrelevant to users

OBS-URL: https://build.opensuse.org/package/show/graphics/libraw?expand=0&rev=86

libraw.changes

@@ -2,10 +2,7 @@
 Wed Jan 11 09:16:36 UTC 2017 - nico.kruber@gmail.com
 
 - update to 0.18.0:
-  * Licensing changes:
-     - there is no 'LibRaw Software License 27032010' licensing
-       anymore (and all signed agreements have expired)
-     - LibRaw is now dual-licensed: LGPL 2.1 or CDDL 1.0
+  * License changed to LGPL-2.1/CDDL-1.0
   * Camera support (+87):
     + Apple: iPad Pro, iPhone SE, iPhone 6s, iPhone 6 plus,
       iPhone 7, iPhone 7 plus
@@ -45,27 +42,15 @@ Wed Jan 11 09:16:36 UTC 2017 - nico.kruber@gmail.com
     + YUNEEC CGO4
     + Xiaomi MI3, RedMi Note3 Pro
   * Floating point DNG support
-  * LibRaw can be built with Adobe DNG SDK support to decode
-    exotic DNG formats (e.g. 8 bit). See README.DNGSDK.txt for
-    details
   * More metadata parsed
-  * New API, C-API calls
   * Existing API changes:
     imgdata.params fields (all very specific purpose):
     sony_arw2_options, sraw_ycc, and params.x3f_flags
     replaced with single bit-field raw_processing_options
     See  LIBRAW_PROCESSING_* bits in documentation.
-  * zlib library is optional
-    Use -DUSE_ZLIB to compile with zlib (to provide deflate DNG
-    support)
-  * libjpeg version: jpeg_mem_src() is mandatory, so use
-    libjpeg-turbo or libjpeg 8+
-  * Fixes in vng_intepolate to make modern compilers happy
   * Fixed bug in Sony SR2 files black level
   * DNG files with BlackLevel both in vendor makernotes and
     BlackLevel: BlackLevel tag always takes precedence
-  * strlen replaced with strnlen in most cases, added local
-    version of strnlen
   * ChannelBlackLevel added to canon makernotes
   * unpack_thumb() data size/offset check against file size
 - removed libraw-0.17.1-gcc6-compatibility.patch (fixed upstream)