doc: document new linker -X syntax in go1.5.html
Fixes #11973.
Change-Id: Icffa3213246663982b7cc795982e0923e272f405
Reviewed-on: https://go-review.googlesource.com/12919
Reviewed-by: Ian Lance Taylor <iant@golang.org>
diff --git a/doc/go1.5.html b/doc/go1.5.html
index 16620e3..23874ef 100644
--- a/doc/go1.5.html
+++ b/doc/go1.5.html
@@ -416,8 +416,8 @@
</p>
<p>
-There are a couple of other changes.
-The more significant is the addition of a <code>-buildmode</code> option that
+There are several other changes.
+The most significant is the addition of a <code>-buildmode</code> option that
expands the style of linking; it now supports
situations such as building shared libraries and allowing other languages
to call into Go libraries.
@@ -436,6 +436,29 @@
DWARF information.
</p>
+<p>
+Finally, the <code>-X</code> flag, which takes two arguments,
+as in
+</p>
+
+<pre>
+-X importpath.name value
+</pre>
+
+<p>
+now also accepts a more common Go flag style with a single argument
+that is itself a <code>name=value</code> pair:
+</p>
+
+<pre>
+-X importpath.name=value
+</pre>
+
+<p>
+Although the old syntax still works, it is recommended that uses of this
+flag in scripts and the like be updated to the new form.
+</p>
+
<h3 id="go_command">Go command</h3>
<p>
