[milo] build_source -> buildSource.

milo/frontend/buildbot_data.go

Index: milo/frontend/buildbot_data.go
diff --git a/milo/frontend/buildbot_data.go b/milo/frontend/buildbot_data.go
index 0e2a90604988a6560e7516e48e9338faaff4bf9e..dbe52744bc7c9ab37306851b1054d29d40766a2c 100644
--- a/milo/frontend/buildbot_data.go
+++ b/milo/frontend/buildbot_data.go
@@ -10,7 +10,7 @@ import (
 	"github.com/luci/gae/impl/memory"
 	"github.com/luci/luci-go/common/clock/testclock"
 	"github.com/luci/luci-go/milo/api/resp"
-	"github.com/luci/luci-go/milo/build_source/buildbot"
+	"github.com/luci/luci-go/milo/buildsource/buildbot"
 	"github.com/luci/luci-go/milo/common"
 	"github.com/luci/luci-go/server/templates"
 	"golang.org/x/net/context"
@@ -22,7 +22,7 @@ func buildbotBuildTestData() []common.TestBundle {
 	c, _ = testclock.UseTime(c, testclock.TestTimeUTC)
 	bundles := []common.TestBundle{}
 	for _, tc := range buildbot.TestCases {
-		build, err := buildbot.DebugBuild(c, "../build_source/buildbot", tc.Builder, tc.Build)
+		build, err := buildbot.DebugBuild(c, "../buildsource/buildbot", tc.Builder, tc.Build)
 		if err != nil {
 			panic(fmt.Errorf(
 				"Encountered error while building debug/%s/%s.\n%s",