Use no tabs in Info

[Drew Adams]

I don't know if this can be considered a bug, but it would be preferable for
Info buffers not to use TAB characters. Currently, most Info menus use a
mixture of TABs and spaces to align the menu-item descriptions.

The TABs are not useful (not needed), they are not used systematically (a
mix is used within single menu items), and their presence can complicate the
processing of Info buffers by other programs and Lisp functions. (Yes,
`untabify' is available, but interactive functions that process an Info
buffer don't necessarily want to modify the buffer.)

Is there a reason not to do without TAB for alignment in Info? They are not
used for this purpose in similar places elsewhere in Emacs (e.g. *Help*,
*Completions*, and Dired buffers).