R CMD Rd2pdf ignores tabs in the usage section.
However, I just discovered that it doesn't ignore trailing spaces (before
I'm assuming that the same thing happens when the online man pages are
I didn't check what happens in the examples section.
I think it would be better if tabs were recognized.
However, if not, then I think that R CMD check should generate a note or a
warning if tabs are ignored, encouraging package maintainers to use spaces.
Otherwise, the formatting of the man pages is incorrect.
I've made this mistake which is currently easy to do.