acme, sha3, ssh: fix the typos

acme/autocert/renewal_test.go

@@ -131,7 +131,7 @@ func TestRenewFromCache(t *testing.T) {
 		t.Fatal(err)
 	}
 
-	// veriy the renewal happened
+	// verify the renewal happened
 	defer func() {
 		testDidRenewLoop = func(next time.Duration, err error) {}
 	}()
@@ -244,7 +244,7 @@ func TestRenewFromCacheAlreadyRenewed(t *testing.T) {
 	man.state[exampleCertKey] = s
 	man.stateMu.Unlock()
 
-	// veriy the renewal accepted the newer cached cert
+	// verify the renewal accepted the newer cached cert
 	defer func() {
 		testDidRenewLoop = func(next time.Duration, err error) {}
 	}()

sha3/sha3.go

@@ -86,7 +86,7 @@ func (d *state) permute() {
 		d.buf = d.storage.asBytes()[:0]
 		keccakF1600(&d.a)
 	case spongeSqueezing:
-		// If we're squeezing, we need to apply the permutatin before
+		// If we're squeezing, we need to apply the permutation before
 		// copying more output.
 		keccakF1600(&d.a)
 		d.buf = d.storage.asBytes()[:d.rate]

ssh/agent/keyring.go

@@ -113,7 +113,7 @@ func (r *keyring) Unlock(passphrase []byte) error {
 
 // expireKeysLocked removes expired keys from the keyring. If a key was added
 // with a lifetimesecs contraint and seconds >= lifetimesecs seconds have
-// ellapsed, it is removed. The caller *must* be holding the keyring mutex.
+// elapsed, it is removed. The caller *must* be holding the keyring mutex.
 func (r *keyring) expireKeysLocked() {
 	for _, k := range r.keys {
 		if k.expire != nil && time.Now().After(*k.expire) {