The CFLocale API can produce locale identifiers with modifiers, such as
"pl_PL@currency=EUR".  However, the Mac setlocale() can't understand such
locale strings.

The problem was that the paragraph format was being retrieved,
slightly modified and then used to set the paragraph format, without
limiting the mask to what was being set.  The PFM_OFFSETINDENT mask flag
being valid meant that dxStartIndent specifies a relative offset, thus
dxStartIndent was doubled.

winedbg: Don't force integral values while displaying a stack value, it doesn't work for float/double values.