patch 8.2.4963: expanding path with "/**" may overrun end of buffer

Problem:    Expanding path with "/**" may overrun end of buffer.
Solution:   Use vim_snprintf().
diff --git a/src/version.c b/src/version.c
index 1a33a73..fddf7d9 100644
--- a/src/version.c
+++ b/src/version.c
@@ -747,6 +747,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    4963,
+/**/
     4962,
 /**/
     4961,