fix a typo

Author: amin1377

vpr/src/route/route_utils.cpp

@@ -510,10 +510,9 @@ void try_graph(int width_fac,
 #ifndef NO_GRAPHICS
 void update_draw_pres_fac(const float new_pres_fac) {
 #else
-void update_draw_pres_fac(const float /*new_pres_fac*/)
+void update_draw_pres_fac(const float /*new_pres_fac*/) {
 #endif
 #ifndef NO_GRAPHICS
-
     // Only updates the drawing pres_fac if graphics is enabled
     get_draw_state_vars()->pres_fac = new_pres_fac;