* ext/zlib/zlib.c: [DOC] Remove default value of Zlib constants, as

they may change in the implementation without notice. Patched by
  @robin850 [Fixes GH-682] https://github.com/ruby/ruby/pull/682


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@46976 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,9 @@
+Mon Jul 28 04:39:58 2014  Zachary Scott  <e@zzak.io>
+
+	* ext/zlib/zlib.c: [DOC] Remove default value of Zlib constants, as
+	  they may change in the implementation without notice. Patched by
+	  @robin850 [Fixes GH-682] https://github.com/ruby/ruby/pull/682
+
 Mon Jul 28 04:35:35 2014  Zachary Scott  <e@zzak.io>
 
 	* ext/openssl/ossl_hmac.c: Fix NO_HMAC warning [Fixes GH-665]

ext/zlib/zlib.c

@@ -1463,13 +1463,15 @@ rb_deflate_s_allocate(VALUE klass)
  * the default value of that argument is used.
  *
  * The +level+ sets the compression level for the deflate stream between 0 (no
- * compression) and 9 (best compression. The following constants have been
+ * compression) and 9 (best compression). The following constants have been
  * defined to make code more readable:
  *
- * * Zlib::NO_COMPRESSION = 0
- * * Zlib::BEST_SPEED = 1
- * * Zlib::DEFAULT_COMPRESSION = 6
- * * Zlib::BEST_COMPRESSION = 9
+ * * Zlib::DEFAULT_COMPRESSION
+ * * Zlib::NO_COMPRESSION
+ * * Zlib::BEST_SPEED
+ * * Zlib::BEST_COMPRESSION
+ *
+ * See http://www.zlib.net/manual.html#Constants for further information.
  *
  * The +window_bits+ sets the size of the history buffer and should be between
  * 8 and 15.  Larger values of this parameter result in better compression at
@@ -1591,7 +1593,7 @@ deflate_run(VALUE args)
  *
  * Compresses the given +string+. Valid values of level are
  * Zlib::NO_COMPRESSION, Zlib::BEST_SPEED, Zlib::BEST_COMPRESSION,
- * Zlib::DEFAULT_COMPRESSION, or an integer from 0 to 9 (the default is 6).
+ * Zlib::DEFAULT_COMPRESSION, or an integer from 0 to 9.
  *
  * This method is almost equivalent to the following code:
  *