all: fix spelling mistakes

Signed-off-by: Josh Soref <2119212+jsoref@users.noreply.github.com>

util/clientmetric/clientmetric.go

@@ -197,7 +197,7 @@ func WritePrometheusExpositionFormat(w io.Writer) {
 const (
 	// metricLogNameFrequency is how often a metric's name=>id
 	// mapping is redundantly put in the logs. In other words,
-	// this is how how far in the logs you need to fetch from a
+	// this is how far in the logs you need to fetch from a
 	// given point in time to recompute the metrics at that point
 	// in time.
 	metricLogNameFrequency = 4 * time.Hour

util/deephash/deephash.go

@@ -434,7 +434,7 @@ func makeMapHasher(t reflect.Type) typeHasherFunc {
 		mh := mapHasherPool.Get().(*mapHasher)
 		defer mapHasherPool.Put(mh)
 
-		// Hash a map in a sort-free mannar.
+		// Hash a map in a sort-free manner.
 		// It relies on a map being a an unordered set of KV entries.
 		// So long as we hash each KV entry together, we can XOR all the
 		// individual hashes to produce a unique hash for the entire map.

util/deephash/deephash_test.go

@@ -552,7 +552,7 @@ func TestGetTypeHasher(t *testing.T) {
 			out:  "\x01\x00\x00\x00\x02\x00\x00\x00\x03\x04\x00\x00\x00",
 		},
 		{
-			name: "IntIntByteInt-canddr",
+			name: "IntIntByteInt-canaddr",
 			val:  &IntIntByteInt{1, 2, 3, 4},
 			out:  "\x01\x01\x00\x00\x00\x02\x00\x00\x00\x03\x04\x00\x00\x00",
 		},
@@ -604,9 +604,9 @@ func TestSliceCycle(t *testing.T) {
 	type S []S
 	c := qt.New(t)
 
-	a := make(S, 1) // cylic graph of 1 node
+	a := make(S, 1) // cyclic graph of 1 node
 	a[0] = a
-	b := make(S, 1) // cylic graph of 1 node
+	b := make(S, 1) // cyclic graph of 1 node
 	b[0] = b
 	ha := Hash(&a)
 	hb := Hash(&b)
@@ -642,9 +642,9 @@ func TestMapCycle(t *testing.T) {
 	type M map[string]M
 	c := qt.New(t)
 
-	a := make(M) // cylic graph of 1 node
+	a := make(M) // cyclic graph of 1 node
 	a["self"] = a
-	b := make(M) // cylic graph of 1 node
+	b := make(M) // cyclic graph of 1 node
 	b["self"] = b
 	ha := Hash(&a)
 	hb := Hash(&b)
@@ -897,7 +897,7 @@ func TestArrayAllocs(t *testing.T) {
 
 	// In theory, there should be no allocations. However, escape analysis on
 	// certain architectures fails to detect that certain cases do not escape.
-	// This discrepency currently affects sha256.digest.Sum.
+	// This discrepancy currently affects sha256.digest.Sum.
 	// Measure the number of allocations in sha256 to ensure that Hash does
 	// not allocate on top of its usage of sha256.
 	// See https://golang.org/issue/48055.

util/deephash/pointer.go

@@ -27,7 +27,7 @@ import (
 // rely on pointer.asValue to convert the pointer back to a reflect.Value.
 // Conversion of an unsafe.Pointer to reflect.Value guarantees that the
 // read-only flag in the reflect.Value is unpopulated, avoiding panics that may
-// othewise have occurred since the value was obtained from an unexported field.
+// otherwise have occurred since the value was obtained from an unexported field.
 type unsafePointer struct{ p unsafe.Pointer }
 
 func unsafePointerOf(v reflect.Value) unsafePointer {

util/dnsname/dnsname_test.go

@@ -104,7 +104,7 @@ func TestSanitizeLabel(t *testing.T) {
 		{"mixed", "Avery's iPhone 4(SE)", "averys-iphone-4se"},
 		{"dotted", "mon.ipn.dev", "mon-ipn-dev"},
 		{"email", "admin@example.com", "admin-example-com"},
-		{"boudary", ".bound.ary.", "bound-ary"},
+		{"boundary", ".bound.ary.", "bound-ary"},
 		{"bad_trailing", "a-", "a"},
 		{"bad_leading", "-a", "a"},
 		{"bad_both", "-a-", "a"},

util/mak/mak.go

@@ -52,7 +52,7 @@ func NonNil(ptr interface{}) {
 
 // NonNilSliceForJSON makes sure that *slicePtr is non-nil so it will
 // won't be omitted from JSON serialization and possibly confuse JavaScript
-// clients expecting it to be preesnt.
+// clients expecting it to be present.
 func NonNilSliceForJSON[T any, S ~[]T](slicePtr *S) {
 	if *slicePtr != nil {
 		return
@@ -62,7 +62,7 @@ func NonNilSliceForJSON[T any, S ~[]T](slicePtr *S) {
 
 // NonNilMapForJSON makes sure that *slicePtr is non-nil so it will
 // won't be omitted from JSON serialization and possibly confuse JavaScript
-// clients expecting it to be preesnt.
+// clients expecting it to be present.
 func NonNilMapForJSON[K comparable, V any, M ~map[K]V](mapPtr *M) {
 	if *mapPtr != nil {
 		return