extra spacing

[Hans van der Meer <hansm@science.uva.nl>]

With math followed by a \crlf extra spacing is introduced in the math.
For example:
		Test
		\crlf
		(1) inverse $b\rightarrow b^{-1}$
		\crlf
		(2) inverse $b\rightarrow b^{-1}$\hfill\null
		\crlf
		(3) inverse $b\rightarrow b^{-1}$

In line (1) extra white is introduced around the white arrow.
In line (2) the fix is given, allthough not a problem ii is a nuisance.
In line (3) one sees it is the \crlf that lets the math expand because 
here no extra white.

Is this a feature or has this phenomenon escaped attention hitherto?

Hans van der Meer