patch 8.2.1917: no test for improved Man command

Problem:    No test for improved Man command.
Solution:   Test that shell arguments are properly escaped.
diff --git a/src/version.c b/src/version.c
index f1beb91..32c42a0 100644
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1917,
+/**/
     1916,
 /**/
     1915,