encoding/gob: s/TestIngoreDepthLimit/TestIgnoreDepthLimit/

For #53615

Change-Id: Ib85004d400931094fc1ea933cf73f4a5157aece1
Reviewed-on: https://go-review.googlesource.com/c/go/+/417559
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
Run-TryBot: Ian Lance Taylor <iant@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>

src/encoding/gob/gobencdec_test.go

@@ -798,7 +798,7 @@ func TestNetIP(t *testing.T) {
 	}
 }
 
-func TestIngoreDepthLimit(t *testing.T) {
+func TestIgnoreDepthLimit(t *testing.T) {
 	// We don't test the actual depth limit because it requires building an
 	// extremely large message, which takes quite a while.
 	oldNestingDepth := maxIgnoreNestingDepth