olevba - remove output to stderr

[decalage2]

Originally reported by: Philippe Lagadec (Bitbucket: decalage, GitHub: decalage2)

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olevba in oletools 0.12 takes more time to analyze files because it includes a VBA parser. Therefore I added a temporary message "analysis..." on the console. I did not want it to appear in the output if redirected to a file, so I wrote it to stderr.

In some cases such as running olevba from powershell, this causes issues because it can be considered as reporting an actual error.

solutions:

• remove that message
• write the message to stdout
• add an option to disable that message.

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• Bitbucket: https://bitbucket.org/decalage/oletools/issue/23

[decalage2]

Original comment by Patrick O'Beirne (Bitbucket: patrick_obeirne, GitHub: Unknown):

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Remove the message; olevba is very fast.

[decalage2]

Original comment by Philippe Lagadec (Bitbucket: decalage, GitHub: decalage2):

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olevba: removed usage of sys.stderr which causes issues (fixed issue #23)