tdf#93071 Remove trailing zeroes of scientific in General format

(cherry picked from commit a6fbbfd2)
Change-Id: I408bab7edf58020fc1ec541dc940c84d387bb56c
Reviewed-on: https://gerrit.libreoffice.org/17769Reviewed-by: Eike Rathke <erack@redhat.com>
Tested-by: Eike Rathke <erack@redhat.com>

svl/source/numbers/zformat.cxx

@@ -1969,7 +1969,7 @@ void lcl_GetOutputStringScientific(double fNumber, sal_uInt16 nCharCount,
     nPrec = ::std::min(nPrec, static_cast<sal_uInt16>(14)); // limit to 14 decimals.
 
     rOutString = ::rtl::math::doubleToUString(fNumber, rtl_math_StringFormat_E2,
-                                              nPrec, rFormatter.GetNumDecimalSep()[0]);
+                                              nPrec, rFormatter.GetNumDecimalSep()[0], true );
 }
 
 sal_Int32 lcl_GetForcedDenominator(const ImpSvNumberformatInfo &rInfo, sal_uInt16 nAnz)