patch 7.4.1006

Problem:    The fix in patch 7.3.192 is not tested.
Solution:   Add a test, one for each regexp engine. (Elias Diem)

src/version.c

@@ -741,6 +741,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1006,
 /**/
     1005,
 /**/