HUD: always display a close button in upper right

src/demo/highcon.c

@@ -84,7 +84,7 @@ int highcontrast_demo(struct notcurses* nc){
   // right. start at the upper left, from the logical beginning of the array.
   cell c = CELL_TRIVIAL_INITIALIZER;
   cell_set_fg_alpha(&c, CELL_ALPHA_HIGHCONTRAST);
-  const char motto[] = "high contrast text ";
+  const char motto[] = " high contrast text ";
   do{
     unsigned idx = iter % totcells; // first color for upper-left
     for(int yx = 0 ; yx < dimy * dimx ; ++yx){

src/demo/hud.c

@@ -181,7 +181,7 @@ int hud_schedule(const char* demoname){
     cure = malloc(sizeof(*cure));
   }
   elem* e = elems;
-  int plen = HUD_COLS - 4 - NSLEN;
+  int plen = HUD_COLS - 10 - NSLEN;
   while(e){
     hook = &e->next;
     if(ncplane_printf_yx(hud, line, 0, "%-6d %*ju.%02jus %-*.*s", e->frames,