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How do change the number of dashes shown at the end of a dimension?

This is probably very simple, but I cannot find (even in the help files) how to edit the number of dashes are shown at the end of the dimension line, when I have Deviation Symbol active. My default is 9 (8 dashes and a hash tag or arrow) the program I inherited has 17 (16 dashes and a hash tag or arrow). This is not a big deal, just bugs me I can`t figure out how to change it. Below is a screen capture.