genscripts comment tidy

genscripts comment tidy

Some of the comments in this file are ancient and no longer reflect
reality.  This patch removes those comments, and also the description
of ld options emitted to script files.  While describing what an
option does in the script file might help reinforce what the option
does, it's unnecessary and makes for overlong lines.  Also, some of
the descriptions did not mention all the options.

	* genscripts.sh: Correct comments.  Remove outdated comment block
	saying "Generate 5 or 6 script files..".  Remove description of
	ld options from comment emitted to script files, and order options
	as per comment block in genscripts.sh saying which scripts are
	generated.