vim-patch:8.2.0953: spell checking doesn't work for CamelCased words

Problem:    Spell checking doesn't work for CamelCased words.
Solution:   Add the "camel" value in the new option 'spelloptions'.
            (closes vim/vim#1235)
362b44bd4a

src/nvim/options.lua

@@ -2319,6 +2319,16 @@ return {
       varname='p_sps',
       defaults={if_true={vi="best"}}
     },
+    {
+      full_name='spelloptions', abbreviation='spo',
+      type='string', list='onecomma', scope={'buffer'},
+      deny_duplicates=true,
+      secure=true,
+      vi_def=true,
+      expand=true,
+      varname='p_spo',
+      defaults={if_true={vi="", vim=""}}
+    },
     {
       full_name='splitbelow', abbreviation='sb',
       type='bool', scope={'global'},