misc/dashboard: center align build results

R=rsc, dsymonds
CC=golang-dev
https://golang.org/cl/4806041

misc/dashboard/godashboard/static/style.css

diff --git a/misc/dashboard/godashboard/static/style.css b/misc/dashboard/godashboard/static/style.css
index a7e61dd..d6d23b5 100644
--- a/misc/dashboard/godashboard/static/style.css
+++ b/misc/dashboard/godashboard/static/style.css
@@ -54,6 +54,9 @@
 table.alternate tr:nth-child(2n) {
 	background-color: #f0f0f0;
 }
+td.result {
+	text-align: center;
+}
 span.hash {
 	font-family: monospace;
 	font-size: small;