Remove some spaces within invocations of &bold() and other
formatting macros to placate the RST/Sphinx formatter.
Remove tab characters entirely, which cleans up code examples.
Change text "NULL pointer" to "nil pointer".
Signed-off-by: Lott, Christopher (cl778h) <cl778h@att.com>
Change-Id: Ic9ab6304831c0b1db21f62159da4f02f0442bb98