Fix copy-paste error

Due the variables above this error, I think this needs to be the .Height, not .Width

Change-Id: If796cd1950f59d0e1a6005c1c1185066c688ef55
Reviewed-on: https://gerrit.libreoffice.org/15748
Reviewed-by: Miklos Vajna <vmiklos@collabora.co.uk>
Tested-by: Miklos Vajna <vmiklos@collabora.co.uk>
diff --git a/oox/source/drawingml/customshapepresetdata.cxx b/oox/source/drawingml/customshapepresetdata.cxx
index 94d29f7..92252f3 100644
--- a/oox/source/drawingml/customshapepresetdata.cxx
+++ b/oox/source/drawingml/customshapepresetdata.cxx
@@ -146,7 +146,7 @@ awt::Rectangle lcl_parseRectangle(const OString& rValue)
    aToken = aToken.copy(nIndex);
    assert(aToken.startsWith(aExpectedHeightPrefix));
    nIndex = strlen(aExpectedHeightPrefix);
    aRectangle.Width = static_cast<sal_Int32>(aToken.copy(nIndex).toInt32());
    aRectangle.Height = static_cast<sal_Int32>(aToken.copy(nIndex).toInt32());

    return aRectangle;
}