Add a few more tests for simplification

.idea/codeStyles/codeStyleConfig.xml

@@ -0,0 +1,5 @@
+<component name="ProjectCodeStyleConfiguration">
+  <state>
+    <option name="PREFERRED_PROJECT_CODE_STYLE" value="Default" />
+  </state>
+</component>

.idea/go.imports.xml

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="GoImports">
+    <option name="groupStdlibImports" value="true" />
+    <option name="importSorting" value="GOIMPORTS" />
+    <option name="moveAllImportsInOneDeclaration" value="true" />
+    <option name="moveAllStdlibImportsInOneGroup" value="true" />
+  </component>
+</project>

cmd/eksterd/simplify_test.go

@@ -48,9 +48,21 @@ func TestInReplyTo(t *testing.T) {
 	if results[0]["in-reply-to"] != "https://github.com/w3c/csswg-drafts/issues/2589" {
 		t.Fatalf("not in-reply-to, but %s", results[0]["in-reply-to"])
 	}
+	if results[0]["syndication"] != "https://github.com/w3c/csswg-drafts/issues/2589#thumbs_up-by-tantek" {
+		t.Fatalf("not in-reply-to, but %s", results[0]["syndication"])
+	}
 	if results[0]["published"] != "2018-04-25 11:14-0700" {
 		t.Fatalf("not published, but %s", results[0]["published"])
 	}
+	if results[0]["updated"] != "2018-04-25 11:14-0700" {
+		t.Fatalf("not updated, but %s", results[0]["updated"])
+	}
+	if results[0]["url"] != "http://tantek.com/2018/115/t1/" {
+		t.Fatalf("not url, but %s", results[0]["url"])
+	}
+	if results[0]["uid"] != "http://tantek.com/2018/115/t1/" {
+		t.Fatalf("not uid, but %s", results[0]["url"])
+	}
 
 	if authorValue, e := results[0]["author"]; e {
 		if author, ok := authorValue.(map[string]string); ok {