patch 8.2.2245: Vim9: return value of winrestcmd() cannot be executed

Problem:    Vim9: return value of winrestcmd() cannot be executed.
Solution:   Put colons before each range. (closes #7571)
diff --git a/src/evalwindow.c b/src/evalwindow.c
index 884f409..492269e 100644
--- a/src/evalwindow.c
+++ b/src/evalwindow.c
@@ -1010,9 +1010,9 @@
     ga_init2(&ga, (int)sizeof(char), 70);
     FOR_ALL_WINDOWS(wp)
     {
-	sprintf((char *)buf, "%dresize %d|", winnr, wp->w_height);
+	sprintf((char *)buf, ":%dresize %d|", winnr, wp->w_height);
 	ga_concat(&ga, buf);
-	sprintf((char *)buf, "vert %dresize %d|", winnr, wp->w_width);
+	sprintf((char *)buf, "vert :%dresize %d|", winnr, wp->w_width);
 	ga_concat(&ga, buf);
 	++winnr;
     }
diff --git a/src/testdir/test_vim9_builtin.vim b/src/testdir/test_vim9_builtin.vim
index 4abdcdb..3fd3e6d 100644
--- a/src/testdir/test_vim9_builtin.vim
+++ b/src/testdir/test_vim9_builtin.vim
@@ -716,5 +716,15 @@
   close
 enddef
 
+def Test_winrestcmd()
+  split
+  var cmd = winrestcmd()
+  wincmd _
+  exe cmd
+  assert_equal(cmd, winrestcmd())
+  close
+enddef
+
+
 
 " vim: ts=8 sw=2 sts=2 expandtab tw=80 fdm=marker
diff --git a/src/version.c b/src/version.c
index 20bd86f..bee026c 100644
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    2245,
+/**/
     2244,
 /**/
     2243,