patch 8.0.0207: leaking file descriptor when system() fails

Problem:    Leaking file descriptor when system() cannot find the buffer.
            (Coverity)
Solution:   Close the file descriptor.  (Dominique Pelle, closes #1398)
diff --git a/src/version.c b/src/version.c
index f3c4a4b..e350e9c 100644
--- a/src/version.c
+++ b/src/version.c
@@ -765,6 +765,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    207,
+/**/
     206,
 /**/
     205,