Remove dupword true positives and disable dupword

.golangci.yml

@@ -5,6 +5,8 @@ linters:
     # too noisy
     - cyclop
     - depguard
+    # dupword is somewhat useful, but tagging false positives is not a good use of anyone's time
+    - dupword
     - exhaustivestruct
     - funlen
     - gochecknoglobals

example_sharedkey_test.go

@@ -71,7 +71,7 @@ func Example() {
 	// Some time later, we actually want to authenticate with this stuff
 	// Client and server may talk. Depending on what the client has locally,
 	// The client may need to be told its salt, and the SRP group to use
-	// But here we will assume that that the client knows this, and already has
+	// But here we will assume that the client knows this, and already has
 	// computed x.
 
 	client := srp.NewClientStd(srp.KnownGroups[group], x)
@@ -129,7 +129,7 @@ func Example() {
 		log.Fatal(err)
 	}
 
-	// client tests tests that the server sent a good proof
+	// client tests that the server sent a good proof
 	if !client.GoodServerProof(salt, username, serverProof) {
 		// Client must bail and not send a its own proof back to the server
 		log.Fatal("bad proof from server")

group.go

@@ -18,7 +18,7 @@ type Group struct {
 	ExponentSize int // RFC 3526 §8
 }
 
-// N returns the modulus of the the group.
+// N returns the modulus of the group.
 func (g *Group) N() *big.Int {
 	return g.n
 }

srp.go

@@ -23,7 +23,7 @@ while proving to each other that they each know their long term secrets (x is th
 secret and v is the server's secret). Although the key that you arrive at is 32 bytes, its
 strength is a function of the group size used.
 
-Creating the SRP object with with NewSRPServer()/NewSRPClient() takes care of generating your ephemeral
+Creating the SRP object with NewSRPServer()/NewSRPClient() takes care of generating your ephemeral
 secret (a or b depending on whether you are a client or server), your public
 ephemeral key (A or B depending on whether you are a client or server),
 the multiplier k. (There is a setter for k if you wish to use a different scheme
@@ -101,7 +101,7 @@ NewSRPServer sets up an SRP object for a server.
 
 Recall that group is the Diffie-Hellman group to be used,
 v is your long term secret and k is the set multiplier.
-Pass in a a nil k if you want it to be generated for you.
+Pass in a nil k if you want it to be generated for you.
 Note that you need the same k on both server and client.
 */
 func NewSRPServer(group *Group, v, k *big.Int) *SRP {