fix(controller.go): change to valid package

arschles · Aaron Schlesinger · commit c717660ebd7d · 2016-01-13T10:15:24.000-08:00
diff --git a/pkg/gitreceive/controller.go b/pkg/gitreceive/controller.go
@@ -1,7 +1,7 @@
 package gitreceive
 
 import (
-	"error"
+	"errors"
 	"strings"
 )
 
