diff --git a/checker_test.go b/checker_test.go
index c50b516..7d85815 100644
--- a/checker_test.go
+++ b/checker_test.go
@@ -1,4 +1,3 @@
-//
 package checker
 
 import (
diff --git a/lower_test.go b/lower_test.go
index cefd630..8b68d46 100644
--- a/lower_test.go
+++ b/lower_test.go
@@ -1,4 +1,3 @@
-//
 package checker_test
 
 import (
diff --git a/regexp_test.go b/regexp_test.go
index aec0840..99cee62 100644
--- a/regexp_test.go
+++ b/regexp_test.go
@@ -1,4 +1,3 @@
-//
 package checker_test
 
 import (
diff --git a/same_test.go b/same_test.go
index 564749d..54e7f09 100644
--- a/same_test.go
+++ b/same_test.go
@@ -1,4 +1,3 @@
-//
 package checker_test
 
 import (
diff --git a/test_helper_test.go b/test_helper_test.go
index f381441..a093409 100644
--- a/test_helper_test.go
+++ b/test_helper_test.go
@@ -1,4 +1,3 @@
-//
 package checker_test
 
 import (
diff --git a/title_test.go b/title_test.go
index 31e35d8..acad9d1 100644
--- a/title_test.go
+++ b/title_test.go
@@ -1,4 +1,3 @@
-//
 package checker_test
 
 import (
diff --git a/trim_left_test.go b/trim_left_test.go
index a6c5df7..181bdb1 100644
--- a/trim_left_test.go
+++ b/trim_left_test.go
@@ -1,4 +1,3 @@
-//
 package checker_test
 
 import (
diff --git a/trim_right_test.go b/trim_right_test.go
index 3fd1b55..da3b114 100644
--- a/trim_right_test.go
+++ b/trim_right_test.go
@@ -1,4 +1,3 @@
-//
 package checker_test
 
 import (
diff --git a/trim_test.go b/trim_test.go
index 87f2a4b..2e58fb3 100644
--- a/trim_test.go
+++ b/trim_test.go
@@ -1,4 +1,3 @@
-//
 package checker_test
 
 import (
diff --git a/upper_test.go b/upper_test.go
index 3ab3342..fedd20b 100644
--- a/upper_test.go
+++ b/upper_test.go
@@ -1,4 +1,3 @@
-//
 package checker_test
 
 import (