Assorted spelling fixes

[Francois Gouget]

On Sun, 16 Feb 2014, Dmitry Timoshkov wrote:
[...]
> > >> -    cab_ULONG window_size;     /* window size (1Kb through 2Mb)           */
> > >> +    cab_ULONG window_size;     /* window size (1 KB through 2 MB)         */
[...]
> In my years of University the students were told to remember that
> 1Kb == 1024 bytes, 1Mb == 1024Kb and size prefixes should be written
> as a capital letter to emphasize its meaning.

'1Kb' is some number of bits, not bytes and is nowhere close to 1024 
bytes. So that's one thing that really needed fixing in the old comment.

Now as for the always confusing 1000 vs 1024 ambiguity and kB vs. KB vs. 
KiB aspect I don't care.

Reference:
 * https://en.wikipedia.org/wiki/Bit
   The symbol for bit, as a unit of information, is either simply bit 
   (recommended by the ISO/IEC standard 80000-13 (2008)) or lowercase b 
   (recommended by the IEEE 1541 Standard (2002)).

 * https://en.wikipedia.org/wiki/Byte#Unit_symbol
   The unit symbol for the byte is specified in IEC 80000-13, IEEE 1541 
   and the Metric Interchange Format as the upper-case character B.

   The unit symbol kB is commonly used for kilobyte, but may be confused 
   with the still often-used abbreviation of kb for kilobit. IEEE 1541 
   specifies the lower case character b as the symbol for bit; however, 
   IEC 80000-13 and Metric-Interchange-Format specify the abbreviation 
   bit (e.g., Mbit for megabit) for the symbol, providing disambiguation 
   from B for byte.

 * https://en.wikipedia.org/wiki/Kilobyte
   All existing recommendations prefer to use the uppercase letter B for 
   byte, because b is used for the bit.



Just as a note, in the GUI we seem to be using 'k' (*), 'kB', 'MB' and 
'GB'. If anyone wants to change the first two to 'KB' I'm fine with 
that. The 'KiB' variants may prove too confusing for non technical users 
however.

(*) Look for '64k'.


-- 
Francois Gouget <fgouget at free.fr>              http://fgouget.free.fr/
                            1 + e ^ ( i * pi ) = 0