Automatically reformat com32/lib/realloc.c using Nindent.

Do this for all files except HDT, gPXE and externally maintained
libraries (zlib, tinyjpeg, libpng).

Signed-off-by: H. Peter Anvin <hpa@zytor.com>

With loadfile() doing megabyte-sized trial-and-error allocations, we
want to be able to do really set the size on the final allocation;
thus constrain the amount of permitted slack to 4K max.

When we realloc() a block larger, try to protect the free block
following it from being immediately allocated by something else by
placing it at the end of the freelist instead of the beginning.

Change the realloc() implementation to allow in-place growth.  This is
an important step in handling files without knowing their sizes a
priori.

Hello list,

I've been playing with com32 programs lately and I've come across a
a problem with the realloc function in libcom32.  The code that rounds
up the size looks to be missing a '~' operator, resulting in it
truncating every request to a size of 0-15 bytes.

The little patch below fixes it up to match the corresponding line in
malloc, which makes it work for me.

K.