Make isTerminal un-exported

terminal_check_unix.go

@@ -1,12 +1,12 @@
 // +build linux aix
 
-package terminal
+package logrus
 
 import "golang.org/x/sys/unix"
 
 const ioctlReadTermios = unix.TCGETS
 
-func IsTerminal(fd int) bool {
+func isTerminal(fd int) bool {
 	_, err := unix.IoctlGetTermios(fd, ioctlReadTermios)
 	return err == nil
 }