diff --git a/text/gstr/gstr_case.go b/text/gstr/gstr_case.go
index e264f1e2a..71761826b 100644
--- a/text/gstr/gstr_case.go
+++ b/text/gstr/gstr_case.go
@@ -24,9 +24,8 @@ import (
 )
 
 var (
-	numberSequence    = regexp.MustCompile(`([a-zA-Z])(\d+)([a-zA-Z]?)`)
-	numberReplacement = []byte(`$1 $2 $3`)
-
+	numberSequence      = regexp.MustCompile(`([a-zA-Z])(\d+)([a-zA-Z]?)`)
+	numberReplacement   = []byte(`$1 $2 $3`)
 	firstCamelCaseStart = regexp.MustCompile(`([A-Z]+)([A-Z]?[_a-z\d]+)|$`)
 	firstCamelCaseEnd   = regexp.MustCompile(`([\w\W]*?)([_]?[A-Z]+)$`)
 )
diff --git a/text/gstr/gstr_z_unit_case_test.go b/text/gstr/gstr_z_unit_case_test.go
index f9df4fe6e..de957d9f3 100644
--- a/text/gstr/gstr_z_unit_case_test.go
+++ b/text/gstr/gstr_z_unit_case_test.go
@@ -4,8 +4,6 @@
 // If a copy of the MIT was not distributed with this file,
 // You can obtain one at https://github.com/gogf/gf.
 
-// go test *.go -bench=".*"
-
 package gstr_test
 
 import (