RTF export: fix position of at-character-anchored textframes

Our importer could deal with the frames without these, but not Word.

Change-Id: I6f7d13aba45129357fcf8c11e60d5a9dbc7a8ca2

sw/source/filter/ww8/rtfattributeoutput.cxx

@@ -2800,6 +2800,7 @@ void RtfAttributeOutput::FormatVertOrientation( const SwFmtVertOrient& rFlyVert
             break;
             default:
                 m_aFlyProperties.push_back(std::make_pair<OString, OString>("posrelv", OString::number(2)));
+                m_rExport.Strm() << OOO_STRING_SVTOOLS_RTF_SHPBYPARA << OOO_STRING_SVTOOLS_RTF_SHPBYIGNORE;
             break;
         }
 
@@ -2850,6 +2851,7 @@ void RtfAttributeOutput::FormatHorizOrientation( const SwFmtHoriOrient& rFlyHori
             break;
             default:
                 m_aFlyProperties.push_back(std::make_pair<OString, OString>("posrelh", OString::number(2)));
+                m_rExport.Strm() << OOO_STRING_SVTOOLS_RTF_SHPBXCOLUMN << OOO_STRING_SVTOOLS_RTF_SHPBXIGNORE;
             break;
         }