Fix expected test results for eachday filter operator

The tiddler "a fourth tiddler" doesn't have a modified date, and so
shouldn't appear

editions/test/tiddlers/tests/test-filters.js

@@ -158,7 +158,7 @@ describe("Filter tests", function() {
 	});
 
 	it("should handle the eachday operator", function() {
-		expect(wiki.filterTiddlers("[eachday[modified]sort[title]]").join(",")).toBe("a fourth tiddler,Tiddler Three,TiddlerOne");
+		expect(wiki.filterTiddlers("[eachday[modified]sort[title]]").join(",")).toBe("Tiddler Three,TiddlerOne");
 	});
 
 	it("should handle the sameday operator", function() {