patch 8.0.1071: putty-color and cygwin-color are not recognized

Problem:    $TERM names starting with "putty" and "cygwin" are likely to have
            a dark background, but are not recognized.
Solution:   Only check the first few characters of $TERM to match "putty" or
            "cygwin". (Christian Brabandt)

src/version.c

@@ -769,6 +769,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1071,
 /**/
     1070,
 /**/