Fixed minor and rather obscure problem: When including files, the line after

Fixed minor and rather obscure problem: When including files, the line after
the .include statement went into the listing file, before the contents of
the include file. The problem was caused by the several levels of lookahead
in the scanner, and the only way to avoid it was to remove the calls to
NextTok () in relevant places - and add compensation for it in others.

git-svn-id: svn://svn.cc65.org/cc65/trunk@3609 b7a2c559-68d2-44c3-8de9-860c34a00d81