bug#1476: 23.0.60; spelling of (un)writeable should be (un)writable

[Drew Adams]

Emacs manual, node Directory Variables.
Please change "unwriteable" to "unwritable".
 
Not very important, since this is just an invented name in an example,
but it can lead users to think that's the spelling and thus to look
for such a term in the future.  Googling shows that similar bugs have
been logged for Scheme, Python, man pages, and elsewhere.
 
FWIW, for example, from
http://savannah.gnu.org/bugs/?func=detailitem&item_id=13363:
 
,----
|  In any case "writEable" is an error: 
| 
|  % echo writable | ispell -l -d american | ispell -l -d british ;echo $? 
|  0 # no output, it's correct. 
|  % echo writeable | ispell -l -d american | ispell -l -d british ;echo $? 
|  writeable # not in dictionaries. 
|  0
| 
|  ...
| 
|  If doubt remains, see also this search for 'writable': 
|  http://www.onelook.com/?w=writable&ls=a 
|  ...which returns: 
| 
|  We found 7 dictionaries with English definitions that include the word
writable: 
| 
|  General dictionaries General (7 matching dictionaries) 
|  1. writable : Merriam-Webster's Online Dictionary, 10th Edition [home, info] 
|  2. writable : The American Heritage=ae Dictionary of the English Language
[home, info] 
|  3. writable : Dictionary.com [home, info] 
|  4. writable : UltraLingua English Dictionary [home, info] 
|  5. Writable : Online Plain Text English Dictionary [home, info] 
|  6. writable : Webster's Revised Unabridged, 1913 Edition [home, info] 
|  7. Writable : AllWords.com Multi-Lingual Dictionary [home, info]
`----

In GNU Emacs 23.0.60.1 (i386-mingw-nt5.1.2600)
 of 2008-11-24 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'