doc: add missing oxford comma in Constants

In the language specification under "Constants" the lists matching default
types to untyped contstant types is missing an Oxford comma in the first
list. I found a number of other places in the spec and #23442 that use the
Oxford comma to support its use.

Add missing Oxford comma in Constants default type list.

Change-Id: I4562d692610334bc82452db076145d2414617a04
GitHub-Last-Rev: 8acdb60d6e255f73fdeb908d2540d4ee35db3fd7
GitHub-Pull-Request: golang/go#59528
Reviewed-on: https://go-review.googlesource.com/c/go/+/483555
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Run-TryBot: Ian Lance Taylor <iant@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>

diff --git a/doc/go_spec.html b/doc/go_spec.html
index 8aea636c6bbf58f8629a16a39e86e42c89abfd6b..9f685d1f1fb15e984097df473d5c131a6b875cdc 100644 (file)
--- a/doc/go_spec.html
+++ b/doc/go_spec.html
@@ -690,7 +690,7 @@ constant is implicitly converted in contexts where a typed value is required,
 for instance, in a <a href="#Short_variable_declarations">short variable declaration</a>
 such as <code>i := 0</code> where there is no explicit type.
 The default type of an untyped constant is <code>bool</code>, <code>rune</code>,
-<code>int</code>, <code>float64</code>, <code>complex128</code> or <code>string</code>
+<code>int</code>, <code>float64</code>, <code>complex128</code>, or <code>string</code>
 respectively, depending on whether it is a boolean, rune, integer, floating-point,
 complex, or string constant.
 </p>