Enable ns-use-srgb-colorspace by default

See thread
https://lists.gnu.org/archive/html/emacs-devel/2013-12/msg00706.html

* nsterm.m (syms_of_nsterm): Enable ns-use-srgb-colorspace by
default.

etc/NEWS

@@ -1288,7 +1288,7 @@ Customize `ns-use-native-fullscreen' to change style.  For >= 10.7
 native is the default.
 
 ** OSX >= 10.7 can use sRGB colorspace.
-Customize `ns-use-srgb-colorspace' to change style.  nil is the default.
+Customize `ns-use-srgb-colorspace' to change style.  t is the default.
 Note: This does not apply to images.
 
 

src/ChangeLog

+2013-12-27  Steve Purcell  <steve@sanityinc.com>  (tiny change)
+
+	* nsterm.m (syms_of_nsterm): Enable ns-use-srgb-colorspace by
+	default.
+
 2013-12-27  Chong Yidong  <cyd@gnu.org>
 
 	* data.c (Fsymbol_function): Doc fix.

src/nsterm.m

@@ -7647,8 +7647,8 @@ Nil means use fullscreen the old (< 10.7) way.  The old way works better with
   DEFVAR_BOOL ("ns-use-srgb-colorspace", ns_use_srgb_colorspace,
      doc: /*Non-nil means to use sRGB colorspace on OSX >= 10.7.
 Note that this does not apply to images.            
-This variable is ignored on OSX < 10.7 and GNUStep.  Default is nil. */);
-  ns_use_srgb_colorspace = NO;
+This variable is ignored on OSX < 10.7 and GNUStep.  Default is t. */);
+  ns_use_srgb_colorspace = YES;
 
   /* TODO: move to common code */
   DEFVAR_LISP ("x-toolkit-scroll-bars", Vx_toolkit_scroll_bars,