html/template: fix typo in content_test.go

esacped -> escaped

Change-Id: I253c46b30bb1cf7cdfb4668628907d16428fefb9
GitHub-Last-Rev: accd0e089f35b93c7e26725fcac5c048799db022
GitHub-Pull-Request: golang/go#53553
Reviewed-on: https://go-review.googlesource.com/c/go/+/414274
Reviewed-by: Ian Lance Taylor <iant@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Daniel Martí <mvdan@mvdan.cc>
Run-TryBot: Ian Lance Taylor <iant@google.com>
diff --git a/src/html/template/content_test.go b/src/html/template/content_test.go
index 497264e..f4af2f2 100644
--- a/src/html/template/content_test.go
+++ b/src/html/template/content_test.go
@@ -280,7 +280,7 @@
 			[]string{
 				`#ZgotmplZ`,
 				`#ZgotmplZ`,
-				// Commas are not esacped
+				// Commas are not escaped.
 				`Hello,#ZgotmplZ`,
 				// Leading spaces are not percent escapes.
 				` dir=%22ltr%22`,