Merge pull request #9447 from janlazo/vim-8.1.0651

vim-patch:8.1.{651,653}

src/nvim/ex_cmds2.c

@@ -1772,7 +1772,7 @@ void ex_args(exarg_T *eap)
     }
   }
 
-  if (!ends_excmd(*eap->arg)) {
+  if (*eap->arg != NUL) {
     // ":args file ..": define new argument list, handle like ":next"
     // Also for ":argslocal file .." and ":argsglobal file ..".
     ex_next(eap);

src/nvim/testdir/test_arglist.vim

@@ -170,6 +170,15 @@ func Test_argument()
   call assert_fails('argument', 'E163:')
 endfunc
 
+func Test_args_with_quote()
+  " Only on Unix can a file name include a double quote.
+  if has('unix')
+    args \"foobar
+    call assert_equal('"foobar', argv(0))
+    %argdelete
+  endif
+endfunc
+
 " Test for 0argadd and 0argedit
 " Ported from the test_argument_0count.in test script
 func Test_zero_argadd()