vim-patch:8.0.0179

Problem:    'formatprg' is a global option but the value may depend on the
            type of buffer. (Sung Pae)
Solution:   Make 'formatprg' global-local. (closes vim/vim#1380)

9be7c04e6c

src/nvim/buffer_defs.h

@@ -640,6 +640,7 @@ struct file_buffer {
   char_u *b_p_inde;             ///< 'indentexpr'
   uint32_t b_p_inde_flags;      ///< flags for 'indentexpr'
   char_u *b_p_indk;             ///< 'indentkeys'
+  char_u *b_p_fp;               ///< 'formatprg'
   char_u *b_p_fex;              ///< 'formatexpr'
   uint32_t b_p_fex_flags;       ///< flags for 'formatexpr'
   char_u *b_p_kp;               ///< 'keywordprg'