doc: use the same wording for OS X as the other OSes
I used "and above" when I should have said "or later".
Sorry for the churn.
R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/25670043
diff --git a/doc/install.html b/doc/install.html
index 92f7189..02260fe 100644
--- a/doc/install.html
+++ b/doc/install.html
@@ -51,7 +51,7 @@
<tr><td colspan="3"><hr></td></tr>
<tr><td>FreeBSD 7 or later</td> <td>amd64, 386, arm</td> <td>Debian GNU/kFreeBSD not supported; FreeBSD/ARM needs FreeBSD 10 or later</td></tr>
<tr><td>Linux 2.6.23 or later with glibc</td> <td>amd64, 386, arm</td> <td>CentOS/RHEL 5.x not supported; no binary distribution for ARM yet</td></tr>
-<tr><td>Mac OS X 10.6 and above</td> <td>amd64, 386</td> <td>use the gcc<sup>†</sup> that comes with Xcode<sup>‡</sup></td></tr>
+<tr><td>Mac OS X 10.6 or later</td> <td>amd64, 386</td> <td>use the gcc<sup>†</sup> that comes with Xcode<sup>‡</sup></td></tr>
<tr><td>Windows 2000 or later</td> <td>amd64, 386</td> <td>use mingw gcc<sup>†</sup>; cygwin or msys is not needed</td></tr>
<tr><td>NetBSD 6 or later</td> <td>amd64, 386</td> <td></td></tr>
</table>