bug#1193: 23.0.60; doc string of bookmark-set

[Drew Adams]

The doc string says:
 
 Typing C-u inserts the name of the last bookmark used in the buffer
 (as an aid in using a single bookmark name to track your progress
 through a large file).  If no bookmark was used, then C-u inserts the
 name of the file being visited.
 
This is unclear - "inserts...in the buffer" can give the impression
that the last bookmark that was used (anywhere) is inserted in the
(current) buffer. Even if you figure out that it means that it is the
last bookmark that was used in the (current) buffer that is inserted,
it's not clear where that is inserted. And in fact it is inserted
nowhere - it is simply provided as the default value for the bookmark
name.
 
Also, is it correct for the doc string to say this?
 
 Set a bookmark named NAME inside a file.
 
Why "inside a file"? Nowadays you can set bookmarks in Info
etc. (granted, ultimately that is a file, but it is not what the doc
string suggests).
 
Also, no reason to quote "push" in the doc string.
 
 
 
In GNU Emacs 23.0.60.1 (i386-mingw-nt5.1.2600)
 of 2008-10-03 on LENNART-69DE564
Windowing system distributor `Microsoft Corp.', version 5.1.2600
configured using `configure --with-gcc (3.4) --no-opt --cflags -Ic:/g/include
-fno-crossjumping'