Eliminated gcc -Wall complaints:

Eliminated gcc -Wall complaints:

    - Quieted gcc -Wall by removing unused local variables.

    - Added some choice parentheses around assignments in conditional
      tests.

    - Removed an unused (and seemingly unreachable) err label in
      load_short_binstring().

    - in Unpickler_load(), removed \. in string format.

    - init_stuff() was declared to return an int, but had these
      problems:

	- it was returning NULL instead of 0 or 1 in some cases
	- it was falling of the end of the routine without returning
	  anything
	- the call of init_stuff() in initcPickle() was never checking
	  the return value anyway.

      I changed all this by returning 1 in the case of errors, 0 when
      no error occurred.  Then in initcPickle(), if init_stuff()
      returns non-zero, I call Py_FatalError().

Suppressing my urge to reformat according to Python coding standards!
:-)