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cleanup, and now it produces KNF output

#
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# Copyright (c) 1984, 1989, William LeFebvre, Rice University
# Copyright (c) 1989, 1990, 1992, William LeFebvre, Northwestern University
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer in the
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# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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BEGIN {
	nsig = 0;
	j = 0;
	print "/* This file was automatically generated */"
	print "/* by the awk script \"sigconv.awk\".      */"	
	print "/* $OpenBSD: sigconv.awk,v 1.4 2003/06/18 08:42:31 deraadt Exp $ */\n"
	print "struct sigdesc {"
	print "	char	*name;"
	print "	int	number;"
	print "};\n"
	print "struct sigdesc sigdesc[] = {"
}

/^#define[ \t][ \t]*SIG[A-Z]/	{

	j = sprintf("%d", $3);
	str = $2;
	if (nsig < j) 
		nsig = j;
	siglist[j] = sprintf("\"%s\",\t%2d", substr(str, 4), j);
}

/^#[ \t]*define[ \t][ \t]*SIG[A-Z]/	{

	j = sprintf("%d", $4);
	str = $3;
	if (nsig < j)
		nsig = j;
	siglist[j] = sprintf("\"%s\",\t%2d", substr(str, 4), j);
}

/^#[ \t]*define[ \t][ \t]*_SIG[A-Z]/	{

	j = sprintf("%d", $4);
	str = $3;
	if (nsig < j)
		nsig = j;

	siglist[j] = sprintf("\"%s\",\t%2d", substr(str, 5), j);
}

END {
	for (n = 1; n <= nsig; n++) 
		if (siglist[n] != "")
			printf("	{ %s },\n", siglist[n]);

	printf("    { NULL,\t 0 }\n};\n");
}