diff --git a/dev-tools/mage/gotest_test.go b/dev-tools/mage/gotest_test.go
index edbb1e549f99..49784c0fd6c2 100644
--- a/dev-tools/mage/gotest_test.go
+++ b/dev-tools/mage/gotest_test.go
@@ -210,41 +210,41 @@ var wantTestAssertOutput = `(?sm:
         	Error Trace:	gotest_test.go:\d+.*
         	Error:      	Should be true.*
         	Test:       	TestGoTest_Helper_AssertOutput/assert_fails.*
-    --- FAIL: TestGoTest_Helper_AssertOutput/assert_fails .*
+
 === FAIL: dev-tools/mage TestGoTest_Helper_AssertOutput/assert_with_message .*
     gotest_test.go:\d+:.*
         	Error Trace:	gotest_test.go:\d+.*
         	Error:      	Should be true.*
         	Test:       	TestGoTest_Helper_AssertOutput/assert_with_message.*
         	Messages:   	My message.*
-    --- FAIL: TestGoTest_Helper_AssertOutput/assert_with_message .*
+
 === FAIL: dev-tools/mage TestGoTest_Helper_AssertOutput/assert_with_messagef .*
     gotest_test.go:\d+:.*
         	Error Trace:	gotest_test.go:\d+.*
         	Error:      	Should be true.*
         	Test:       	TestGoTest_Helper_AssertOutput/assert_with_messagef.*
         	Messages:   	My message with arguments: 42.*
-    --- FAIL: TestGoTest_Helper_AssertOutput/assert_with_messagef .*
+
 === FAIL: dev-tools/mage TestGoTest_Helper_AssertOutput/require_fails .*
     gotest_test.go:\d+:.*
         	Error Trace:	gotest_test.go:\d+.*
         	Error:      	Should be true.*
         	Test:       	TestGoTest_Helper_AssertOutput/require_fails.*
-    --- FAIL: TestGoTest_Helper_AssertOutput/require_fails .*
+
 === FAIL: dev-tools/mage TestGoTest_Helper_AssertOutput/require_with_message .*
     gotest_test.go:\d+:.*
         	Error Trace:	gotest_test.go:\d+.*
         	Error:      	Should be true.*
         	Test:       	TestGoTest_Helper_AssertOutput/require_with_message.*
         	Messages:   	My message.*
-    --- FAIL: TestGoTest_Helper_AssertOutput/require_with_message .*
+
 === FAIL: dev-tools/mage TestGoTest_Helper_AssertOutput/require_with_messagef .*
     gotest_test.go:\d+:.*
         	Error Trace:	gotest_test.go:\d+.*
         	Error:      	Should be true.*
         	Test:       	TestGoTest_Helper_AssertOutput/require_with_messagef.*
         	Messages:   	My message with arguments: 42.*
-    --- FAIL: TestGoTest_Helper_AssertOutput/require_with_messagef .*
+
 === FAIL: dev-tools/mage TestGoTest_Helper_AssertOutput/equals_map .*
     gotest_test.go:\d+:.*
         	Error Trace:	gotest_test.go:\d+.*
@@ -306,17 +306,17 @@ var wantTestLogOutput = `(?sm:
     gotest_test.go:\d+: printf style log message: 42.*
     gotest_test.go:\d+: Log should fail.*
     gotest_test.go:\d+: Log should fail with printf style log: 23.*
-    --- FAIL: TestGoTest_Helper_LogOutput/on_error.*
+
 === FAIL: dev-tools/mage TestGoTest_Helper_LogOutput/on_fatal.*
     gotest_test.go:\d+: Log message should be printed.*
     gotest_test.go:\d+: printf style log message: 42.*
     gotest_test.go:\d+: Log should fail.*
-    --- FAIL: TestGoTest_Helper_LogOutput/on_fatal.*
+
 === FAIL: dev-tools/mage TestGoTest_Helper_LogOutput/on_fatalf.*
     gotest_test.go:\d+: Log message should be printed.*
     gotest_test.go:\d+: printf style log message: 42.*
     gotest_test.go:\d+: Log should fail with printf style log: 42.*
-    --- FAIL: TestGoTest_Helper_LogOutput/on_fatalf.*
+
 === FAIL: dev-tools/mage TestGoTest_Helper_LogOutput/with_newlines.*
     gotest_test.go:\d+: Log.*
         message.*
@@ -336,7 +336,7 @@ var wantTestLogOutput = `(?sm:
         style.*
         log:.*
         42.*
-    --- FAIL: TestGoTest_Helper_LogOutput/with_newlines.*
+
 === FAIL: dev-tools/mage TestGoTest_Helper_LogOutput.*
 DONE 5 tests, 5 failures in.*
 )`