Spreadsheet: fix header uniformity

+ trailing whitespace

src/Mod/Spreadsheet/Gui/DlgBindSheet.cpp

@@ -152,7 +152,7 @@ void DlgBindSheet::accept()
                 if(!doc)
                     FC_THROWM(Base::RuntimeError, "Cannot find document " << docname);
                 obj = Base::freecad_dynamic_cast<Sheet>(doc->getObject(sep+1));
-            } else 
+            } else
                 obj = Base::freecad_dynamic_cast<Sheet>(sheet->getDocument()->getObject(ref));
             if(!obj)
                 FC_THROWM(Base::RuntimeError, "Cannot find Spreadsheet '" << ref << "'");
@@ -180,13 +180,13 @@ void DlgBindSheet::accept()
         checkAddress(fromEnd, fromCellEnd, false);
 
         std::string toStart(ui->lineEditToStart->text().trimmed().toLatin1().constData());
-        if(boost::starts_with(toStart,"=")) 
+        if(boost::starts_with(toStart,"="))
             toStart.erase(toStart.begin());
         else
             checkAddress(toStart, toCellStart, true);
 
         std::string toEnd(ui->lineEditToEnd->text().trimmed().toLatin1().constData());
-        if(boost::starts_with(toEnd,"=")) 
+        if(boost::starts_with(toEnd,"="))
             toEnd.erase(toEnd.begin());
         else {
             checkAddress(toEnd, toCellEnd, true);