rewind(3) is already declared to return 'void', so no need for an explicit cast
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@ -467,7 +467,7 @@ closecal(FILE *fp)
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if (!doall)
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return;
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(void)rewind(fp);
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rewind(fp);
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if (fstat(fileno(fp), &sbuf) || !sbuf.st_size)
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goto done;
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if (pipe(pdes) < 0)
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