patch 8.0.1757: unnecessary changes in libvterm

Problem:    Unnecessary changes in libvterm.
Solution:   Bring back // comments and trailing comma in enums.
diff --git a/src/version.c b/src/version.c
index 0960c91..f0cb304 100644
--- a/src/version.c
+++ b/src/version.c
@@ -762,6 +762,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1757,
+/**/
     1756,
 /**/
     1755,