Fix for vim-syntastic#624.

Handle closing the loclist window in a QuitPre.
Remove the prematurely added option g:syntastic_allow_quit.

doc/syntastic.txt

@@ -221,18 +221,6 @@ when saving or opening a file: >
     let g:syntastic_auto_jump=1
 <
 
-                                                      *'syntastic_allow_quit'*
-Default: 1
-When the |location-list| is open and you quit a buffer, syntastic attempts to
-detect if this is the last active buffer, and quit Vim if it is.  This is
-usually what you want, but in that situation Vim will also abandon any hidden
-buffers, thus potentially destroying a carefully crafted session.  Use this
-variable to prevent syntastic from quitting Vim.
-
-When |syntastic_allow_quit| is 0 syntastic will never issue a 'quit' command: >
-    let g:syntastic_allow_quit=0
-<
-
                                                    *'syntastic_auto_loc_list'*
 Default: 2
 Use this option to tell syntastic to automatically open and/or close the

plugin/syntastic.vim

@@ -40,10 +40,6 @@ if !exists("g:syntastic_check_on_open")
     let g:syntastic_check_on_open = 0
 endif
 
-if !exists("g:syntastic_allow_quit")
-    let g:syntastic_allow_quit = 1
-endif
-
 if !exists("g:syntastic_loc_list_height")
     let g:syntastic_loc_list_height = 10
 endif
@@ -79,6 +75,7 @@ augroup syntastic
     " TODO: the next autocmd should be "autocmd BufWinLeave * if empty(&bt) | lclose | endif"
     " but in recent versions of Vim lclose can no longer be called from BufWinLeave
     autocmd BufEnter * call s:BufWinLeaveCleanup()
+    autocmd QuitPre * call g:SyntasticLoclistHide()
 augroup END
 
 

plugin/syntastic/loclist.vim

@@ -146,13 +146,7 @@ endfunction
 " Non-method functions {{{1
 
 function! g:SyntasticLoclistHide()
-    if len(filter( range(1, bufnr('$')), 'syntastic#util#bufIsActive(v:val)' )) == 1
-        if g:syntastic_allow_quit
-            quit
-        endif
-    else
-        lclose
-    endif
+    silent! lclose
 endfunction
 
 " vim: set sw=4 sts=4 et fdm=marker: