patch 8.0.0171: JS style JSON does not support single quotes

Problem:    JS style JSON does not support single quotes.
Solution:   Allow for single quotes. (Yasuhiro Matsumoto, closes #1371)
diff --git a/src/version.c b/src/version.c
index 4bc287f..dfbbe18 100644
--- a/src/version.c
+++ b/src/version.c
@@ -765,6 +765,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    171,
+/**/
     170,
 /**/
     169,