Merge pull request #493 from 0xE0F/master

Fixed compilation for Solaris

terminal_solaris.go

@@ -11,7 +11,6 @@ import (
 
 // IsTerminal returns true if the given file descriptor is a terminal.
 func IsTerminal(f io.Writer) bool {
-	var termios Termios
 	switch v := f.(type) {
 	case *os.File:
 		_, err := unix.IoctlGetTermios(int(v.Fd()), unix.TCGETA)