writefile(readfile(src), dst, flag)
}

// dopack copies the package src to dst,
// appending the files listed in extra.
// The archive format is the traditional Unix ar format.
func dopack(dst, src string, extra []string) {
	bdst := bytes.NewBufferString(readfile(src))
	for _, file := range extra {
		b := readfile(file)
		// find last path element for archive member name
		i := strings.LastIndex(file, "/") + 1

	// when using frame pointer unwinding. We record the stack
	// with "physical" frame pointers but handle skipping "logical"
	// frames at some point after collecting the stack. So
	// we need extra space in order to avoid getting fewer than the
	// desired maximum number of frames after expansion.
	// This should be at least as large as the largest skip value

	cursym     *obj.LSym
	printp     *obj.Prog
	blitrl     *obj.Prog
	elitrl     *obj.Prog
	autosize   int64
	instoffset int64
	pc         int64
	pool       struct {
		start uint32
		size  uint32
		extra uint32
	}
}

type Optab struct {
	as       obj.As
	a1       uint8
	a2       int8
	a3       uint8
	type_    uint8
	size     int8
	param    int16
	flag     int8
	pcrelsiz uint8

      --external-hostname="${EXTERNAL_HOSTNAME}" \
      --requestheader-username-headers=X-Remote-User \
      --requestheader-group-headers=X-Remote-Group \
      --requestheader-extra-headers-prefix=X-Remote-Extra- \
      --requestheader-client-ca-file="${CERT_DIR}/request-header-ca.crt" \
      --requestheader-allowed-names=system:auth-proxy \
      --proxy-client-cert-file="${CERT_DIR}/client-auth-proxy.crt" \

					Request: newCSRPEM(t),
					// this string is longer than the max signerName limit (635 chars)
					SignerName: fmt.Sprintf("%s.extra/valid-path", maxLengthFQDN),
				},
			},
			errs: field.ErrorList{
				field.TooLong(specPath.Child("signerName"), fmt.Sprintf("%s.extra", maxLengthFQDN), len(maxLengthFQDN)),
			},
		},
		"signerName can have a longer path if the domain component is less than the max length": {

In other words, when you combine file collections this way, the result always reflects what's currently in the source file collections, even if they change during the build.

For example, imagine `collection` in the above example gains an extra file or two after `union` is created.
As long as you use `union` after those files are added to `collection`, `union` will also contain those additional files.
The same goes for the `different` file collection.

// The finalizer goroutine is kicked off only when all spans are swept.
// When the next GC starts, it sweeps all not-yet-swept spans (if any).

// GC rate.
// Next GC is after we've allocated an extra amount of memory proportional to
// the amount already in use. The proportion is controlled by GOGC environment variable
// (100 by default). If GOGC=100 and we're using 4M, we'll GC again when we get to 8M

	// gcAssistTimeSlack is the nanoseconds of mutator assist time that
	// can accumulate on a P before updating gcController.assistTime.
	gcAssistTimeSlack = 5000

	// gcOverAssistWork determines how many extra units of scan work a GC
	// assist does when an assist happens. This amortizes the cost of an
	// assist by pre-paying for this many bytes of future allocations.
	gcOverAssistWork = 64 << 10

				bad = true
			}
		}
	}
	if !bad {
		var addr uintptr
		tp, addr = tp.next(x + span.elemsize)
		if addr == 0 {
			return
		}
		println("runtime: extra pointer:", hex(addr))
	}
	print("runtime: hasHeader=", header != nil, " typ.Size_=", typ.Size_, " hasGCProg=", typ.Kind_&abi.KindGCProg != 0, "\n")

// nolint: lll
func TestServiceDiscoveryServiceUpdate(t *testing.T) {
	store, sd, events := initServiceDiscovery(t)
	// httpStaticOverlayUpdated is the same as httpStaticOverlay but with an extra endpoint added to test updates
	httpStaticOverlayUpdated := func() *config.Config {
		c := httpStaticOverlay.DeepCopy()
		se := c.Spec.(*networking.ServiceEntry)
		se.Endpoints = append(se.Endpoints, &networking.WorkloadEntry{