perl metadata paser fails on vectors unless the line ends with a comment

[bills]

The perl metadata config file parser generates errors on vectors. That is lines of the form

@RADIAL.ANNULAR.BINS.LOWER F32 0.0 1.2 3.4 5.2 8.8 15.0 23.2 37.2 57.1 91.0 141.0

Unless the line ends with a comment # this is a comment

[bills]

The problem is that the vector_sep parser eats the newline which cofuses code later on.