patch 8.0.0716: not easy to start Vim cleanly

Problem:    Not easy to start Vim cleanly without changing the viminfo file.
            Not possible to know whether the -i command line flag was used.
Solution:   Add the --clean command line argument.  Add the 'viminfofile'
            option.  Add "-u DEFAULTS".
diff --git a/src/version.c b/src/version.c
index c8322cd..09b3b85 100644
--- a/src/version.c
+++ b/src/version.c
@@ -765,6 +765,10 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    716,
+/**/
+    715,
+/**/
     714,
 /**/
     713,