Space above date and signature set smaller.

fi-thesis-report.cls

@@ -79,7 +79,7 @@ Oponent: & \@reader \\
 
 % Document footer (date, signature)
 \AtEndDocument{
-\vspace{3em}
+\vspace{2em}
 \noindent
 Brno \today \hfill \ifthenelse{\equal{\@reportType}{reader}}{\@reader}{\@supervisor}
 }