2 files changed, 4 insertions, 4 deletions
diff --git a/src/runtime/testdata/testprog/crash.go b/src/runtime/testdata/testprog/crash.go
index 38c8f6a2fa..bdc395f652 100644
--- a/src/runtime/testdata/testprog/crash.go
+++ b/src/runtime/testdata/testprog/crash.go
@@ -77,7 +77,7 @@ func DoublePanic() {
 type exampleError struct{}
 
 func (e exampleError) Error() string {
-	panic("important error message")
+	panic("important multi-line\nerror message")
 }
 
 func ErrorPanic() {
@@ -97,7 +97,7 @@ func DoubleErrorPanic() {
 type exampleStringer struct{}
 
 func (s exampleStringer) String() string {
-	panic("important stringer message")
+	panic("important multi-line\nstringer message")
 }
 
 func StringerPanic() {
@@ -115,7 +115,7 @@ func DoubleStringerPanic() {
 }
 
 func StringPanic() {
-	panic("important string message")
+	panic("important multi-line\nstring message")
 }
 
 func NilPanic() {
diff --git a/src/runtime/testdata/testprog/panicprint.go b/src/runtime/testdata/testprog/panicprint.go
index c8deabe2ab..4ce958ba3d 100644
--- a/src/runtime/testdata/testprog/panicprint.go
+++ b/src/runtime/testdata/testprog/panicprint.go
@@ -31,7 +31,7 @@ func panicCustomComplex128() {
 }
 
 func panicCustomString() {
-	panic(MyString("Panic"))
+	panic(MyString("Panic\nline two"))
 }
 
 func panicCustomBool() {