Fix typos.

test/http_test.go

@@ -47,7 +47,7 @@ func TestGetIndex(t *testing.T) {
 	p := startInstance(t, 2)
 	defer checkedStop(t, p)
 
-	// Check for explicint index.html
+	// Check for explicit index.html
 
 	res, err := http.Get("http://localhost:8082/index.html")
 	if err != nil {

test/util.go

@@ -220,7 +220,7 @@ func alterFiles(dir string) error {
 			/*
 				This fails. Bug?
 
-					// Rename the file, while potentially moving it up in the directory hiearachy
+					// Rename the file, while potentially moving it up in the directory hierarchy
 					case r == 4 && comps > 2 && (info.Mode().IsRegular() || rand.Float64() < 0.2):
 						rpath := filepath.Dir(path)
 						if rand.Float64() < 0.2 {