glog.go
func (t *TraceLocation) match(file string, line int) bool {
	if t.line != line {
		return false
	}
	if i := strings.LastIndex(file, "/"); i >= 0 {
		file = file[i+1:]
	}
	return t.file == file
}
func (t *TraceLocation) match(file string, line int) bool {
	if t.line != line {
		return false
	}
	if i := strings.LastIndex(file, "/"); i >= 0 {
		file = file[i+1:]
	}
	return t.file == file
}
// match reports whether the specified file and line matches the trace location.
// The argument file name is the full path, not the basename specified in the flag.