End of line chars are stored until another char is added.

This avoid empty files with only a '\n'.

Property definitions

nitc $ PrettyPrinterVisitor :: wait_addn
	# End of line chars are stored until another char is added.
	# This avoid empty files with only a '`\n`'.
	private var wait_addn = 0
src/pretty.nit:262,2--264,26