patch 8.2.1850: "vat" does not select tags correctly over line break

Problem:    "vat" does not select tags correctly over line break.
Solution:   Adjust the search pattern. (Aufar Gilbran, closes #7136)
diff --git a/src/testdir/test_textobjects.vim b/src/testdir/test_textobjects.vim
index 54de3f8..c691c8b 100644
--- a/src/testdir/test_textobjects.vim
+++ b/src/testdir/test_textobjects.vim
@@ -169,6 +169,18 @@
   normal! k$vaty
   call assert_equal("<html>\n<title>welcome\n</html>", @")
 
+  " nested tag that has < in a different line from >
+  let t = "<div><div\n></div></div>"
+  $put =t
+  normal! k0vaty
+  call assert_equal("<div><div\n></div></div>", @")
+
+  " nested tag with attribute that has < in a different line from >
+  let t = "<div><div\nattr=\"attr\"\n></div></div>"
+  $put =t
+  normal! 2k0vaty
+  call assert_equal("<div><div\nattr=\"attr\"\n></div></div>", @")
+
   set quoteescape&
   enew!
 endfunc
diff --git a/src/textobject.c b/src/textobject.c
index 23bdc96..2d5d5dd 100644
--- a/src/textobject.c
+++ b/src/textobject.c
@@ -1347,7 +1347,7 @@
 	curwin->w_cursor = old_pos;
 	goto theend;
     }
-    spat = alloc(len + 31);
+    spat = alloc(len + 39);
     epat = alloc(len + 9);
     if (spat == NULL || epat == NULL)
     {
@@ -1356,7 +1356,7 @@
 	curwin->w_cursor = old_pos;
 	goto theend;
     }
-    sprintf((char *)spat, "<%.*s\\>\\%%(\\s\\_[^>]\\{-}[^/]>\\|>\\)\\c", len, p);
+    sprintf((char *)spat, "<%.*s\\>\\%%(\\_s\\_[^>]\\{-}\\_[^/]>\\|\\_s\\?>\\)\\c", len, p);
     sprintf((char *)epat, "</%.*s>\\c", len, p);
 
     r = do_searchpair(spat, (char_u *)"", epat, FORWARD, NULL,
diff --git a/src/version.c b/src/version.c
index 8ea210a..a2d8221 100644
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1850,
+/**/
     1849,
 /**/
     1848,