patch 8.0.1151: "vim -c startinsert!" doesn't append

Problem:    "vim -c startinsert!" doesn't append.
Solution:   Correct line number on startup. (Christian Brabandt, closes #2117)
diff --git a/src/ex_docmd.c b/src/ex_docmd.c
index c740d03..e2dfd92 100644
--- a/src/ex_docmd.c
+++ b/src/ex_docmd.c
@@ -10294,6 +10294,9 @@
 {
     if (eap->forceit)
     {
+	/* cursor line can be zero on startup */
+	if (!curwin->w_cursor.lnum)
+	    curwin->w_cursor.lnum = 1;
 	coladvance((colnr_T)MAXCOL);
 	curwin->w_curswant = MAXCOL;
 	curwin->w_set_curswant = FALSE;
diff --git a/src/testdir/test_startup.vim b/src/testdir/test_startup.vim
index af2b3c1..6f67bfc 100644
--- a/src/testdir/test_startup.vim
+++ b/src/testdir/test_startup.vim
@@ -263,3 +263,27 @@
   call assert_match("defaulting to 'ansi'", out)
   let $TERM = save_term
 endfunc
+
+func Test_zzz_startinsert()
+  " Test :startinsert
+  call writefile(['123456'], 'Xtestout')
+  let after = [
+	\ ':startinsert',
+  \ 'call feedkeys("foobar\<c-o>:wq\<cr>","t")'
+	\ ]
+  if RunVim([], after, 'Xtestout')
+    let lines = readfile('Xtestout')
+    call assert_equal(['foobar123456'], lines)
+  endif
+  " Test :startinsert!
+  call writefile(['123456'], 'Xtestout')
+  let after = [
+	\ ':startinsert!',
+  \ 'call feedkeys("foobar\<c-o>:wq\<cr>","t")'
+	\ ]
+  if RunVim([], after, 'Xtestout')
+    let lines = readfile('Xtestout')
+    call assert_equal(['123456foobar'], lines)
+  endif
+  call delete('Xtestout')
+endfunc
diff --git a/src/version.c b/src/version.c
index e96e77b..f948b8e 100644
--- a/src/version.c
+++ b/src/version.c
@@ -762,6 +762,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1151,
+/**/
     1150,
 /**/
     1149,