Fix typo in Brainfuck __main__.py

Author: davecom

Brainfuck/__main__.py

@@ -18,7 +18,7 @@
 
 if __name__ == "__main__":
     # Parse the file argument
-    file_parser = ArgumentParser("NanoBASIC")
+    file_parser = ArgumentParser("Brainfuck")
     file_parser.add_argument("brainfuck_file",
                              help="A file containing Brainfuck source code.")
     arguments = file_parser.parse_args()