Uses the pandoc markup processor to convert
part or all of the logbook to a pdf. pdf-filename,
is required by pandoc to have the extension
.pdf. If no additional command line parameters are
supplied the runs and their associated notes are converted. If
items are provided they can be either run numbers or the literal
text none. For each run number on the command
line that run, its transitions and associated notes are rendered in
chronological order to the output file. If none
is specified, the notes that are not associated with any run are rendered.
The order of the items specifies the order in which they are rendered to pdf. For example:
Renders first the notes that are not associated with any run followed by the transitions and notes associated with, in order runs 1,2,3,10, and 4.