Fix 'Dictionary mismatch' error when very small dicts are used because the temporary file isn't written to disk before zstdcat gets executed

zstdwarccat

@@ -47,10 +47,14 @@ if len(sys.argv) == 2:
 		d = get_dict(fp)
 else:
 	d = get_dict(sys.stdin.buffer.raw)
-with tempfile.NamedTemporaryFile() as dfp:
+# The file must be written to the file system before zstdcat is executed. The most reliable way for that is to close the file. This requires manually deleting it at the end.
+with tempfile.NamedTemporaryFile(delete = False) as dfp:
 	dfp.write(d)
+try:
 	args = ['zstdcat', '-D', dfp.name]
 	if len(sys.argv) == 2:
 		args.append(sys.argv[1])
 	pzstd = subprocess.Popen(args)
 	pzstd.communicate()
+finally:
+	os.remove(dfp.name)