tdf#129701 Follow-up of previous change

According to comments in https://gerrit.libreoffice.org/c/core/+/163536
Follow-up of previous change

Change-Id: Icd7b6798d6ef35ca9574125cd3d4c4d89044569c
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/166133
Tested-by: Jenkins
Reviewed-by: Eike Rathke <erack@redhat.com>
diff --git a/sc/source/ui/docshell/impex.cxx b/sc/source/ui/docshell/impex.cxx
index 248c837..80b4a2b 100644
--- a/sc/source/ui/docshell/impex.cxx
+++ b/sc/source/ui/docshell/impex.cxx
@@ -1592,7 +1592,7 @@ bool ScImportExport::ExtText2Doc( SvStream& rStrm )
    ScDocumentImport aDocImport(rDoc);
    do
    {
        SCCOL nLastCol = nEndCol; // tdf#129701 preserve value of nEndCol
        const SCCOL nLastCol = nEndCol; // tdf#129701 preserve value of nEndCol
        for( ;; )
        {
            aLine = ReadCsvLine(rStrm, !bFixed, aSeps, cStr, cDetectSep);
@@ -1714,15 +1714,15 @@ bool ScImportExport::ExtText2Doc( SvStream& rStrm )
                                aTransliteration, aCalendar,
                                pEnglishTransliteration.get(), pEnglishCalendar.get());
                        }
                        ++nCol;
                        if (bIsLastColEmpty)
                        {
                            bIsLastColEmpty = false; // toggle to stop
                        }
                        else
                        {
                            ++nCol;
                            // tdf#129701 detect if there is a last empty column when we need it
                            bIsLastColEmpty = !(*p) && !bSkipEmptyCells && !bDetermineRange && nCol == nLastCol;
                            bIsLastColEmpty = (nCol == nLastCol) && !(*p) && !bSkipEmptyCells && !bDetermineRange;
                        }

                    }