bug#11955: 24.1.50; nit about "point" vs "cursor" in error msg

[Drew Adams]

emacs -Q
C-h i
Put the cursor on a menu title such as `Emacs', not on a menu item.
Hit `RET'.
 
You see this user-error message:
 
"Point neither on reference nor in menu item description"
 
Technically, that's not quite correct.  Point is a position.  It is the
cursor position (just before it).  A position is not "on" or "in"
something.  It is more correct to say that the _cursor_ is not on...
 
In GNU Emacs 24.1.50.1 (i386-mingw-nt5.1.2600)
 of 2012-07-16 on MARVIN
Bzr revision: 109106 fabian@anue.biz-20120716171839-0dv19ib9h6vfggfn
Windowing system distributor `Microsoft Corp.', version 5.1.2600
Configured using:
 `configure --with-gcc (4.6) --no-opt --enable-checking --cflags
 -ID:/devel/emacs/libs/libXpm-3.5.8/include
 -ID:/devel/emacs/libs/libXpm-3.5.8/src
 -ID:/devel/emacs/libs/libpng-dev_1.4.3-1/include
 -ID:/devel/emacs/libs/zlib-dev_1.2.5-2/include
 -ID:/devel/emacs/libs/giflib-4.1.4-1/include
 -ID:/devel/emacs/libs/jpeg-6b-4/include
 -ID:/devel/emacs/libs/tiff-3.8.2-1/include
 -ID:/devel/emacs/libs/gnutls-3.0.9/include
 -ID:/devel/emacs/libs/libiconv-1.13.1-1-dev/include
 -ID:/devel/emacs/libs/libxml2-2.7.8/include/libxml2'