Add an unpatched version of xz, XZ Utils, to /trunk/deps/third_party

xz/debug/repeat.c

+///////////////////////////////////////////////////////////////////////////////
+//
+/// \file       repeat.c
+/// \brief      Repeats given string given times
+///
+/// This program can be useful when debugging run-length encoder in
+/// the Subblock filter, especially the condition when repeat count
+/// doesn't fit into 28-bit integer.
+//
+//  Author:     Lasse Collin
+//
+//  This file has been put into the public domain.
+//  You can do whatever you want with this file.
+//
+///////////////////////////////////////////////////////////////////////////////
+
+#include "sysdefs.h"
+#include <stdio.h>
+
+
+int
+main(int argc, char **argv)
+{
+        if (argc != 3) {
+                fprintf(stderr, "Usage: %s COUNT STRING\n", argv[0]);
+                exit(1);
+        }
+
+        unsigned long long count = strtoull(argv[1], NULL, 10);
+        const size_t size = strlen(argv[2]);
+
+        while (count-- != 0)
+                fwrite(argv[2], 1, size, stdout);
+
+        return !!(ferror(stdout) || fclose(stdout));
+}