patch 8.2.4745: using wrong flag for using bell in the terminal

Problem:    Using wrong flag for using bell in the terminal.
Solution:   Change to use BO_TERM.

src/misc1.c

@@ -1095,11 +1095,10 @@ beep_flush(void)
 }
 
 /*
- * Give a warning for an error.
+ * Give a warning for an error. "val" is one of the BO_ values, e.g., BO_OPER.
  */
     void
-vim_beep(
+vim_beep(unsigned val)
-    unsigned val) // one of the BO_ values, e.g., BO_OPER
 {
 #ifdef FEAT_EVAL
     called_vim_beep = TRUE;

src/terminal.c

@@ -3391,7 +3391,7 @@ handle_postponed_scrollback(term_T *term)
     static int
 handle_bell(void *user UNUSED)
 {
-    vim_beep(BO_SH);
+    vim_beep(BO_TERM);
     return 0;
 }
 

src/version.c

@@ -746,6 +746,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    4745,
 /**/
     4744,
 /**/