vim-patch:8.2.3780: ":cd" works differently on MS-Windows

Problem:    ":cd" works differently on MS-Windows.
Solution:   Add the 'cdhome' option. (closes vim/vim#9324)
29f3a45915

src/nvim/options.lua

@@ -274,6 +274,14 @@ return {
       varname='p_cmp',
       defaults={if_true="internal,keepascii"}
     },
+    {
+      full_name='cdhome', abbreviation='cdh',
+      short_desc=N_("change directory to the home directory by :cd"),
+      type='bool', scope={'global'},
+      secure=true,
+      varname='p_cdh',
+      defaults={if_true=false}
+    },
     {
       full_name='cdpath', abbreviation='cd',
       short_desc=N_("list of directories searched with \":cd\""),