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accept spaces at end of line.

(dumpglyphs): Rework handling of GCs for cursor display
to use scratch_cursor_gc, and reuse the GC more.

(tags-table-list-pointer, tags-table-list-started-at): Doc fixes.
(tags-table-parent-pointer-list): Variable removed.
(tags-table-check-computed-list, tags-table-extend-computed-list): New
functions.
(tags-find-table-in-list): Function removed.
(tags-table-list-member): New function replaces it.
(tags-verify-table): New function, broken out of visit-tags-table-buffer.
(tags-table-including, tags-next-table): Rewritten.
(visit-tags-table-buffer-cont): Variable removed.
(visit-tags-table-buffer): Overhauled.
(tag-exact-match-p): Disallow newline in tag string before \177.

specially, not current buffer.

(mouse-drag-region, mouse-drag-secondary): Pass new arg.

":" as delimiter in INFOPATH.

(rlogin-password): Function deleted.
This functionality is handled by comint-watch-for-password-prompt.

(rlogin-filter): Function deleted.
(rlogin): Do not set the process filter to rlogin-filter.

(O_RDONLY, O_RDWR): Define if undefined.
[emacs] (report_error): Use report_file_error so the user can tell what the
errno code was.
(unexec): Use O_RDONLY instead of explicit 0.
(make_hdr): Don't undo A_TEXT_OFFSET adjustment #ifndef NO_REMAP, since it
was never adjusted earlier #ifndef NO_REMAP.
(adjust_lnnoptrs): Use O_RDWR instead of explicit 2.

ending in a colon for a subdir header line.

(mail-send): Run mail-send-hook before the `Sending...' message.

(x_term_init) [X_IO_BUG]: Init it.
(XTread_socket) [X_IO_BUG]: Don't do XNoOp every time, just 1 in 100.

(font-lock-hack-keywords, font-lock-fontify-region):
Don't call set-buffer-modified-p if no change in its value.

(font-lock-hack-keywords): Avoid changing the narrowing.

(c-font-lock-keywords-2): Insist on whitespace before a label.

(display_mode_line): Likewise.
(prepare_menu_bars): Call it here.

(Fcall_interactively): Don't call minibuffer-window-active-p;
determine directly whether a minibuf window is active.

file attributes.  Print message while merging.  Use separate
buffers for merging.  Try lower case `dir' first.

(gud-marker-filter, gud-find-file): Likewise.
(gud-display-line): Don't use dialog box for questions.

	(aout, elf): New os's.

(get_system_name): New function, now just uses Vsystem_name.