Weird formatting in table and handling of \n

[alert-debug]

As mentioned in discussion #53, the npm audit security report table sometimes has unexpected spaces and missing letters. For example, a package with a dependency on ansi-regex (version 3.0.0 or similar) can cause the table to include this value in the Title column:

|  Inefficient Regular Expression Complexity i       |
│ chalk/ansi-regex                                   |

This is for an Ex.cluded vulnerability, so it appears as black text on a white background in a terminal with a light theme. In particular, this is MacOS Terminal Version 2.11 (440).