Fix textEdit

The p comand append empty line. So when replacing text block with "\n", it need
to remove with dd.

Fixes #483

Author: mattn

autoload/lsp/utils/text_edit.vim

@@ -181,7 +181,7 @@ function! s:generate_sub_cmd_replace(text_edit) abort
     let l:start_character = a:text_edit['range']['start']['character']
     let l:end_line = a:text_edit['range']['end']['line']
     let l:end_character = a:text_edit['range']['end']['character']
-    let l:new_text = substitute(a:text_edit['newText'], '\n$', '', '')
+    let l:new_text = a:text_edit['newText']
 
     let l:sub_cmd = s:preprocess_cmd(a:text_edit['range'])
     let l:sub_cmd .= s:generate_move_start_cmd(l:start_line, l:start_character) " move to the first position
@@ -202,6 +202,9 @@ function! s:generate_sub_cmd_replace(text_edit) abort
     else
         let l:sub_cmd .= "\"=l:merged_text_edit['merged']['newText']\<CR>p"
     endif
+    if l:new_text =~ '\n$'
+        let l:sub_cmd .= 'dd'
+    endif
 
     return l:sub_cmd
 endfunction