debug/gdebug: CallerPackage() function, incorrect package name handling

[ghost]

Go version

go 1.18

GoFrame version

2.71

Can this bug be reproduced with the latest release?

Option Yes

What did you do?

// CallerPackage returns the package name of the caller.
func CallerPackage() string {
	function, _, _ := Caller()

	//备注, 这里假设function值为 "github.com/gogf/gf/v2/test/gtest.C"
	function = "github.com/gogf/gf/v2/test/gtest.C"

	indexSplit := strings.LastIndexByte(function, '/')
	if indexSplit == -1 {
		return function[:strings.IndexByte(function, '.')]
	} else {
		leftPart := function[:indexSplit+1]
		rightPart := function[indexSplit+1:]
		//indexDot := strings.IndexByte(function, '.') //这行是原先代码的. 感觉逻辑有误
		indexDot := strings.IndexByte(rightPart, '.') //备注, 这里应该是对"gtest.C"操作, 而不是function吧?
		//rightPart = rightPart[:indexDot-1] //这行是原先代码的. 感觉逻辑有误,rightPart的目的是为了取到 "gtest"
		rightPart = rightPart[:indexDot]
		return leftPart + rightPart
	}
}

What did you see happen?

上面中文有备注, 应该是逻辑有误, 只不过恰巧代码结果也是"github.com/gogf/gf/v2/test/gtest"

What did you expect to see?

.