...to match its source (/org.openoffice.Office.Writer/Layout/Other/TabStop) and
avoid rounding errors in case the value read from the configuration is ever
written back to the configuration (which is pointless, but e.g. currently
happens when the SwMasterUsrPref ctor calls SwLayoutViewConfig::Load, which
calls SwMasterUsrPref::SetAlignMathObjectsToBaseline, which unconditionally
calls SetModified, so that a later utl::ConfigManager::storeConfigItems will
write them all back)

Change-Id: I7a1ddfbc4771fac101b7ea3a8258bb51f09d9bc1
Reviewed-on: https://gerrit.libreoffice.org/49407Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>