patch 8.2.0883: memory leak in test 49

Problem:    Memory leak in test 49.
Solution:   Free "sfile" from the exception.
diff --git a/src/ex_docmd.c b/src/ex_docmd.c
index ea2763e..a98dc07 100644
--- a/src/ex_docmd.c
+++ b/src/ex_docmd.c
@@ -1278,6 +1278,7 @@
 		    next = messages->next;
 		    emsg(messages->msg);
 		    vim_free(messages->msg);
+		    vim_free(messages->sfile);
 		    vim_free(messages);
 		    messages = next;
 		}
diff --git a/src/version.c b/src/version.c
index 81485ba..dff6cf9 100644
--- a/src/version.c
+++ b/src/version.c
@@ -747,6 +747,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    883,
+/**/
     882,
 /**/
     881,