[Bug 35985] New: Microsoft Paint draws rounded-corner rectangle instead of sharp corner

http://bugs.winehq.org/show_bug.cgi?id=35985

Bug ID: 35985
           Summary: Microsoft Paint draws rounded-corner rectangle instead
                    of sharp corner
           Product: Wine
           Version: 1.7.15
          Hardware: x86
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: -unknown
          Assignee: [e-mail]
          Reporter: [e-mail]

Created attachment 48106
  --> http://bugs.winehq.org/attachment.cgi?id=48106
Screenshot and output image from WINE 1.7.15 and Windows XP SP3

I've used Microsoft Paint on WINE, most tools work fine.
But I found that when I set line thickness to > 1px (using Line tool)
then use Rectangle tool to create a rectangle, those rectangle will have
round corners, rather than a regular sharp corner that it produces on Windows.

Screenshot from WINE (1.7.15) and Windows (XP SP3) also attached,
output file from both configuration also attached too.
First rectangle is 5px-thick, second is 11px-thick
(select 5px and press ^+ 6 times).

Note: For knot on the top-left corner of rectangle (invisible in the
screenshot, but it's there, and got into the output),
I've filed it as a different issue: bug #35984

Microsoft Paint 5.1.2600.5512 (mspaint.exe from Windows XP SP3)
mfc42u.dll 6.2.8071.0 picked from Windows XP SP3, placed with the same
directory as mspaint.exe
WINE: 1.7.15 (git), set to Windows version XP
WINE installed without XInput2, OSMesa, OpenCL, CMS, GStreamer, and OSS support
System: Debian GNU/Linux 5.0 "Lenny" i386