To add a single trailing newline at the end of the file when stripping whitespace

Author: A12o

README.md

@@ -185,6 +185,12 @@ Whitespace highlighting is enabled by default, with a highlight color of red.
     let g:strip_whitelines_at_eof=1
     ```
 
+*  To add a single trailing newline at the end of the file when stripping whitespace, set this option in your `.vimrc`:
+    ```vim
+    let g:strip_whitelines_at_eof=2
+    ```
+
+*  To highlight space characters that appear before or in-between tabs, add the following to your `.vimrc`:
 *  To highlight space characters that appear before or in-between tabs, add the following to your `.vimrc`:
     ```vim
     let g:show_spaces_that_precede_tabs=1

plugin/better-whitespace.vim

@@ -200,7 +200,7 @@ function! s:StripWhitespace(line1, line2)
     silent execute ':' . a:line1 . ',' . a:line2 . 's/' . s:strip_whitespace_pattern . '//e'
 
     " Strip empty lines at EOF
-    if g:strip_whitelines_at_eof == 1 && a:line2 >= line('$')
+    if g:strip_whitelines_at_eof >= 1 && a:line2 >= line('$')
         if &ff == 'dos'
             let nl='\r\n'
         elseif &ff == 'max'
@@ -209,6 +209,10 @@ function! s:StripWhitespace(line1, line2)
             let nl='\n'
         endif
         silent execute '%s/\('.nl.'\)\+\%$//e'
+        " Add trailing newline at EOF
+        if g:strip_whitelines_at_eof == 2
+            silent call append(line('$'), '')
+        endif
     endif
 
     " Restore the saved search and cursor position