patch 8.0.1696: coverage statistics don't work

Problem:    Coverate statistics don't work.
Solution:   Include the xxd directory. (Christian Brabandt)

.travis.yml

@@ -108,7 +108,7 @@ script:
   - if [ -n "$err" ]; then exit 1; fi
 
 after_success:
-  - if [ "$COVERAGE" = "yes" ]; then ~/.local/bin/coveralls -b $SRCDIR -x .xs -e ${SRCDIR}/if_perl.c --encodings utf-8 latin-1 EUC-KR; fi
+  - if [ "$COVERAGE" = "yes" ]; then ~/.local/bin/coveralls -b $SRCDIR -x .xs -i $SRCDIR/xxd -e ${SRCDIR}/if_perl.c --encodings utf-8 latin-1 EUC-KR; fi
   - if [ "$COVERAGE" = "yes" ]; then  cd $SRCDIR && bash <(curl -s https://codecov.io/bash) ; fi
 
 # vim:set sts=2 sw=2 tw=0 et:

src/version.c

@@ -762,6 +762,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1696,
 /**/
     1695,
 /**/