runtime(netrw): Update .netrwbook immediately on bookmark change (#13276)

closes: #9738

Signed-off-by: Christian Brabandt <[email protected]>

Author: KSR-Yasuda

runtime/autoload/netrw.vim

@@ -3516,6 +3516,11 @@ fun! s:NetrwBookHistHandler(chg,curdir)
     echo "bookmarked the current directory"
    endif
 
+   try
+    call s:NetrwBookHistSave()
+   catch
+   endtry
+
   elseif a:chg == 1
    " change to the bookmarked directory
 "   call Decho("(user: <".v:count."gb>) change to the bookmarked directory",'~'.expand("<slnum>"))
@@ -3660,6 +3665,11 @@ fun! s:NetrwBookHistHandler(chg,curdir)
 "    call Decho("g:netrw_bookmarklist=".string(g:netrw_bookmarklist),'~'.expand("<slnum>"))
    endif
 "   call Decho("resulting g:netrw_bookmarklist=".string(g:netrw_bookmarklist),'~'.expand("<slnum>"))
+
+   try
+    call s:NetrwBookHistSave()
+   catch
+   endtry
   endif
   call s:NetrwBookmarkMenu()
   call s:NetrwTgtMenu()