all: fix spelling

Change-Id: Id991d8e81e04835cabfb02d07a2199bfb553726c
GitHub-Last-Rev: 5d0b55d49127a2e2ba3148d20a58c52debcae12b
GitHub-Pull-Request: golang/go#44802
Reviewed-on: https://go-review.googlesource.com/c/go/+/299069
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Trust: Heschi Kreinick <heschi@google.com>
diff --git a/src/net/http/httputil/reverseproxy_test.go b/src/net/http/httputil/reverseproxy_test.go
index b89eb90..22720ca 100644
--- a/src/net/http/httputil/reverseproxy_test.go
+++ b/src/net/http/httputil/reverseproxy_test.go
@@ -1209,7 +1209,7 @@
 	}
 }
 
-func TestReverseProxyWebSocketCancelation(t *testing.T) {
+func TestReverseProxyWebSocketCancellation(t *testing.T) {
 	n := 5
 	triggerCancelCh := make(chan bool, n)
 	nthResponse := func(i int) string {
diff --git a/src/net/http/socks_bundle.go b/src/net/http/socks_bundle.go
index e446669..e6db1c7 100644
--- a/src/net/http/socks_bundle.go
+++ b/src/net/http/socks_bundle.go
@@ -453,7 +453,7 @@
 		b = append(b, up.Username...)
 		b = append(b, byte(len(up.Password)))
 		b = append(b, up.Password...)
-		// TODO(mikio): handle IO deadlines and cancelation if
+		// TODO(mikio): handle IO deadlines and cancellation if
 		// necessary
 		if _, err := rw.Write(b); err != nil {
 			return err