R help - Oct 2014 - How to remove the second line generated by addHeader function in the rtf package

Dear friends,

The addHeader function in the rtf package always generates two rows of texts
even if a subtitle was not specified. Is there any way to stop the function
from generating the second blank line?

FYI, I cannot use the other functions, such as the addParagram and the
addText, because the addHeader function is the only one allowing to set up
TOC levels for contents.

I appreciate your kind help with the matters.

Sincerely,

Zhiqiu

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