chore: fix some typos in comment

Signed-off-by: yajianggroup <yajianggroup@outlook.com>

client/pkg/testutil/leak.go

@@ -112,7 +112,7 @@ func RegisterLeakDetection(t TB) {
 // It will detect common goroutine leaks, retrying in case there are goroutines
 // not synchronously torn down, and fail the test if any goroutines are stuck.
 func afterTest(t TB) {
-	// If test-failed the leaked goroutines list is hidding the real
+	// If the test fails, the leaked goroutines list may hide the real
 	// source of problem.
 	if !t.Failed() {
 		if err := CheckAfterTest(1 * time.Second); err != nil {

client/v3/client_test.go

@@ -353,7 +353,7 @@ func TestNewWithOnlyJWT(t *testing.T) {
 	}
 
 	if tok, ok := meta[rpctypes.TokenFieldNameGRPC]; !ok {
-		t.Error("Token was not successfuly set in the auth bundle")
+		t.Error("Token was not successfully set in the auth bundle")
 	} else if tok != "foo" {
 		t.Errorf("Incorrect token set in auth bundle, got '%s', expected 'foo'", tok)
 	}

client/v3/watch.go

@@ -896,7 +896,7 @@ func (w *watchGRPCStream) newWatchClient() (pb.Watch_WatchClient, error) {
 	w.resuming = resuming
 	w.substreams = make(map[int64]*watcherStream)
 
-	// connect to grpc stream while accepting watcher cancelation
+	// connect to grpc stream while accepting watcher cancellation
 	stopc := make(chan struct{})
 	donec := w.waitCancelSubstreams(stopc)
 	wc, err := w.openWatchClient()

pkg/expect/expect.go

@@ -198,7 +198,7 @@ func (ep *ExpectProcess) ExpectFunc(ctx context.Context, f func(string) bool) (s
 	}
 
 	select {
-	// NOTE: we wait readCloseCh for ep.read() to complete draining the log before acquring the lock.
+	// NOTE: we wait readCloseCh for ep.read() to complete draining the log before acquiring the lock.
 	case <-ep.readCloseCh:
 	case <-ctx.Done():
 		return "", fmt.Errorf("context done before to found matching log")

pkg/grpctesting/stub_server.go

@@ -25,7 +25,7 @@ import (
 	testpb "google.golang.org/grpc/interop/grpc_testing"
 )
 
-// StubServer is borrowed from the interal package of grpc-go.
+// StubServer is borrowed from the internal package of grpc-go.
 // See https://github.com/grpc/grpc-go/blob/master/internal/stubserver/stubserver.go
 // Since it cannot be imported directly, we have to copy and paste it here,
 // and useless code for our testing is removed.

server/etcdserver/api/v3discovery/discovery_test.go

@@ -496,7 +496,7 @@ func TestRegisterSelf(t *testing.T) {
 			}
 
 			if err := d.registerSelf(tc.expectedRegValue); err != nil {
-				t.Errorf("Error occuring on register member self: %v", err)
+				t.Errorf("Error occurring on register member self: %v", err)
 			}
 
 			if fkv.retries != 0 {

server/proxy/grpcproxy/watch_broadcasts.go

@@ -30,7 +30,7 @@ type watchBroadcasts struct {
 	donec   chan struct{}
 }
 
-// maxCoalesceRecievers prevents a popular watchBroadcast from being coalseced.
+// maxCoalesceRecievers prevents a popular watchBroadcast from being coalesced.
 const maxCoalesceReceivers = 5
 
 func newWatchBroadcasts(wp *watchProxy) *watchBroadcasts {

server/storage/mvcc/watchable_store_test.go

@@ -613,7 +613,7 @@ func testWatchRestore(t *testing.T, delayBeforeRestore, delayAfterRestore time.D
 			},
 		},
 		{
-			name:          "revsion before first write",
+			name:          "revision before first write",
 			startRevision: 1,
 			wantEvents: []mvccpb.Event{
 				{Type: mvccpb.PUT, Kv: &mvccpb.KeyValue{Key: testKey, Value: testValue, CreateRevision: 2, ModRevision: 2, Version: 1}},