updated for version 7.3.871
Problem:    search('^$', 'c') does not use the empty match under the cursor.
Solution:   Special handling of the 'c' flag. (Christian Brabandt)
            Add tests.
diff --git a/src/version.c b/src/version.c
index 7705a21..1a652ac 100644
--- a/src/version.c
+++ b/src/version.c
@@ -729,6 +729,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    871,
+/**/
     870,
 /**/
     869,