all: Correct various typos

Skip-check: authors

GitHub-Pull-Request: https://github.com/syncthing/syncthing/pull/4005

lib/connections/service.go

@@ -137,7 +137,7 @@ func NewService(cfg *config.Wrapper, myID protocol.DeviceID, mdl Model, tlsCfg *
 	// There are several moving parts here; one routine per listening address
 	// (handled in configuration changing) to handle incoming connections,
 	// one routine to periodically attempt outgoing connections, one routine to
-	// the the common handling regardless of whether the connection was
+	// the common handling regardless of whether the connection was
 	// incoming or outgoing.
 
 	service.Add(serviceFunc(service.connect))

lib/model/progressemitter.go

@@ -212,7 +212,7 @@ func (t *ProgressEmitter) Register(s *sharedPullerState) {
 	if len(t.registry) == 0 {
 		t.timer.Reset(t.interval)
 	}
-	// Separate the folder ID (arbitrary string) and and the file name by "//"
+	// Separate the folder ID (arbitrary string) and the file name by "//"
 	// because it never appears in a valid file name.
 	t.registry[s.folder+"//"+s.file.Name] = s
 }

lib/protocol/deviceid_test.go

@@ -137,7 +137,7 @@ func TestNewDeviceIDMarshalling(t *testing.T) {
 		t.Fatal(err)
 	}
 
-	// Create an old style message and and attempt unmarshal
+	// Create an old style message and attempt unmarshal
 
 	var msg2 TestOldDeviceID
 	if err := msg2.Unmarshal(bs); err != nil {

lib/scanner/walk.go

@@ -71,7 +71,7 @@ type Config struct {
 	ProgressTickIntervalS int
 	// Signals cancel from the outside - when closed, we should stop walking.
 	Cancel chan struct{}
-	// Wether or not we should also compute weak hashes
+	// Whether or not we should also compute weak hashes
 	UseWeakHashes bool
 }
 

lib/upgrade/upgrade_supported.go

@@ -391,7 +391,7 @@ func verifyUpgrade(archiveName, tempName string, sig []byte) error {
 	//
 	// We then verify the release signature against the contents of this
 	// multireader. This ensures that it is not only a bonafide syncthing
-	// binary, but it it also of exactly the platform and version we expect.
+	// binary, but it is also of exactly the platform and version we expect.
 
 	mr := io.MultiReader(bytes.NewBufferString(archiveName+"\n"), fd)
 	err = signature.Verify(SigningKey, sig, mr)

lib/versioner/external_test.go

@@ -28,7 +28,7 @@ func TestExternalNoCommand(t *testing.T) {
 	// The versioner should fail due to missing command.
 
 	e := External{
-		command:    "nonexistant command",
+		command:    "nonexistent command",
 		folderPath: "testdata/folder path",
 	}
 	if err := e.Archive(file); err == nil {

lib/weakhash/weakhash.go

@@ -99,7 +99,7 @@ type Finder struct {
 
 // Iterate iterates all available blocks that matches the provided hash, reads
 // them into buf, and calls the iterator function. The iterator function should
-// return wether it wishes to continue interating.
+// return whether it wishes to continue iterating.
 func (h *Finder) Iterate(hash uint32, buf []byte, iterFunc func(int64) bool) (bool, error) {
 	if h == nil || hash == 0 || len(buf) != h.size {
 		return false, nil