Regression in Rebar

[Maxime Bellengé]

Hello

This patch is causing a regression in emule, the rebar simply does not
display. 

a+

Maxime

Modified files:
	dlls/comctl32  : rebar.c 

Log message:
	Robert Shearman <rob(a)codeweavers.com>
	- Make row number be zero-based.
	- Improvements to dumping functions to not dump out fields that may
	not have been filled in.