hl-line-mode is buffer-local in spite of its documentation

[Peter S Galbraith]

hl-line.el says that `hl-line-mode' is a global mode and that:

;; You could make variable `hl-line-mode' buffer-local to avoid
;; highlighting specific buffers.

but somehow hl-line-mode is always a buffer-local variable after
invoking `emacs21 -q --no-site-file'.  The side-effect is that it
doesn't work as expected.  If you turn it on, it is enabled in only
that buffer and not globally.  If you turn it on in a second buffer,
it works in both buffers now, but if you turn it off in one of those
buffers then it doesn't work in either since the hooks are removed
globally.

Peter

In GNU Emacs 21.2.1 (i386-debian-linux-gnu, X toolkit, Xaw3d scroll bars)
 of 2002-03-22 on raven, modified by Debian
configured using `configure  i386-debian-linux-gnu --prefix=/usr 
--sharedstatedir=/var/lib --libexecdir=/usr/lib --localstatedir=/var/lib 
--infodir=/usr/share/info --mandir=/usr/share/man --with-pop=yes --with-x=yes 
--with-x-toolkit=athena --without-gif'
Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: nil
  value of $LC_CTYPE: nil
  value of $LC_MESSAGES: nil
  value of $LC_MONETARY: nil
  value of $LC_NUMERIC: nil
  value of $LC_TIME: nil
  value of $LANG: C
  locale-coding-system: nil
  default-enable-multibyte-characters: t


Recent input:
<help-echo> <help-echo> <escape> h l - l i n e - 
m o d e <return> C-h v h l - m o <tab> <backspace> 
<backspace> l i <tab> m <tab> <return> <escape> x r 
e p o t <backspace> r t <tab> <return>

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