cmd, lib: Fix ineffectual assignments (ineffasign) and comment spelling

GitHub-Pull-Request: https://github.com/syncthing/syncthing/pull/3405

lib/model/model.go

@@ -1293,7 +1293,7 @@ func (m *Model) localChangeDetected(folder, path string, files []protocol.FileIn
 		objType := "file"
 		action := "modified"
 
-		// If our local vector is verison 1 AND it is the only version
+		// If our local vector is version 1 AND it is the only version
 		// vector so far seen for this file then it is a new file.  Else if
 		// it is > 1 it's not new, and if it is 1 but another shortId
 		// version vector exists then it is new for us but created elsewhere
@@ -1311,11 +1311,8 @@ func (m *Model) localChangeDetected(folder, path string, files []protocol.FileIn
 			action = "deleted"
 		}
 
-		// If the file is a level or more deep then the forward slash seperator is embedded
-		// in the filename and makes the path look wierd on windows, so lets fix it
-		filename := filepath.FromSlash(file.Name)
-		// And append it to the filepath
-		path := filepath.Join(path, filename)
+		// The full file path, adjusted to the local path separator character.
+		path := filepath.Join(path, filepath.FromSlash(file.Name))
 
 		events.Default.Log(events.LocalChangeDetected, map[string]string{
 			"folder": folder,

lib/model/model_test.go

@@ -563,7 +563,7 @@ func TestIgnores(t *testing.T) {
 
 	// Invalid path, marker should be missing, hence returns an error.
 	m.AddFolder(config.FolderConfiguration{ID: "fresh", RawPath: "XXX"})
-	ignores, _, err = m.GetIgnores("fresh")
+	_, _, err = m.GetIgnores("fresh")
 	if err == nil {
 		t.Error("No error")
 	}

lib/model/sharedpullerstate_test.go

@@ -29,6 +29,9 @@ func TestSourceFileOK(t *testing.T) {
 
 	bs := make([]byte, 6)
 	n, err := fd.Read(bs)
+	if err != nil {
+		t.Fatal(err)
+	}
 
 	if n != len(bs) {
 		t.Fatalf("Wrong read length %d != %d", n, len(bs))