Fix typos found by codespell (#142)

Signed-off-by: Dimitri Papadopoulos <3234522+DimitriPapadopoulos@users.noreply.github.com>

Author: DimitriPapadopoulos

internal/wglinux/parse_linux_test.go

@@ -378,7 +378,7 @@ func TestLinuxClientDevicesOK(t *testing.T) {
 						}...),
 					}),
 				},
-				// Continuation of prevoius peer list, new peer list.
+				// Continuation of previous peer list, new peer list.
 				{
 					Data: m(netlink.Attribute{
 						Type: unix.WGDEVICE_A_PEERS,

wgtypes/types_test.go

@@ -37,7 +37,7 @@ func TestKeyExchange(t *testing.T) {
 	privA, pubA := mustKeyPair()
 	privB, pubB := mustKeyPair()
 
-	// Perform ECDH key exhange: https://cr.yp.to/ecdh.html.
+	// Perform ECDH key exchange: https://cr.yp.to/ecdh.html.
 	sharedA, err := curve25519.X25519(privA[:], pubB[:])
 	if err != nil {
 		t.Fatalf("failed to perform X25519 A: %v", err)