cleanup coding style

Replace tabs with white spaces and remove trailing white spaces

generators/poppler/generator_pdf.cpp

@@ -1132,13 +1132,7 @@ inline void append (Okular::TextPage* ktp,
     const QString &s, double l, double b, double r, double t)
 {
 //    kWarning(PDFDebug).nospace() << "text: " << s << " at (" << l << "," << t << ")x(" << r <<","<<b<<")";
-                ktp->append( s ,
-                    new Okular::NormalizedRect(
-                    l,
-                    t,
-                    r,
-                    b
-                    ));
+    ktp->append(s, new Okular::NormalizedRect(l, t, r, b));
 }
 
 Okular::TextPage * PDFGenerator::abstractTextPage(const QList<Poppler::TextBox*> &text, double height, double width,int rot)