p/multicpu1sec-c: fix stackoverflow in acquire()
When acquire() cannot open/create the cache file, it wrongly called itself. A fatal error is now thrown instead
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@ -122,7 +122,7 @@ int acquire() {
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/* open the spoolfile */
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FILE* cache_file = fopen(cache_filename, "a");
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if (!cache_file) {
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return acquire();
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return fail("cannot create cache_file");
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}
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int cache_file_fd = fileno(cache_file);
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