[gold patch obvious] Fix -z lazy to negate a prior -z now

[Cary Coutant]

Currently, gold processes the -z lazy option, but treats it as a nop.
This patch fixes -z lazy to negate a previous -z now.

Checking in as obvious.

-cary

        * options.h (class General_options): Define -z lazy as an
alias for -z now.

Index: options.h
===================================================================
RCS file: /cvs/src/src/gold/options.h,v
retrieving revision 1.150
diff -u -p -r1.150 options.h
--- options.h	9 Sep 2010 15:29:01 -0000	1.150
+++ options.h	11 Oct 2010 23:07:06 -0000
@@ -1097,9 +1097,9 @@ class General_options
   DEFINE_bool(interpose, options::DASH_Z, '\0', false,
 	      N_("Mark object to interpose all DSOs but executable"),
 	      NULL);
-  DEFINE_bool(lazy, options::DASH_Z, '\0', false,
-	      N_("Mark object for lazy runtime binding (default)"),
-	      NULL);
+  DEFINE_bool_alias(lazy, now, options::DASH_Z, '\0',
+		    N_("Mark object for lazy runtime binding (default)"),
+		    NULL, true);
   DEFINE_bool(loadfltr, options::DASH_Z, '\0', false,
 	      N_("Mark object requiring immediate process"),
 	      NULL);