Remove trailing whitespace. Update copyright to include 2004.
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@ -118,7 +118,7 @@ int tail_main(int argc, char **argv)
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/* Allow legacy syntax of an initial numeric option without -n. */
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if (argc >=2 && ((argv[1][0] == '+') || ((argv[1][0] == '-')
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/* && (isdigit)(argv[1][1]) */
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&& (((unsigned int)(argv[1][1] - '0')) <= 9))))
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&& (((unsigned int)(argv[1][1] - '0')) <= 9))))
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{
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optind = 2;
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optarg = argv[1];
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