end-of-defun acts weirdly in c-mode; also, mark-defun in c-mode

[Miles Bader]

Instead of moving to the end of the current function, it actually seems
to move one line further if there's whitespace there.  This is
inconsistent with the behavior of end-of-defun elsewhere in emacs.

Also, since "mark-defun" basically does the right thing in c-mode
(except for slightly funny handling of whitespace due to c-mode's wacky
end-of-defun behavior), the current c-mode specific binding of C-M-h
(c-mark-function) should probably be removed.

Thanks,

-Miles

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