(and other lexers too) This commit rectifies earlier change: in the lex... even inside quotes, a \ followed by space or tab should expand to space or tab, and a \ followed by newline should be ignored (as a line continuation). compatible with the needs of hoststated (which has the most strict quoted string requirements), and ifstated (where one commonly does line continuations in strings). OK deraadt@, OK millert@OPENBSD_6_5