patch 8.1.1669: Travis: test results section is closed even when failed

Problem:    Travis: test results section is closed even when some tests
            failed.
Solution:   Only close the section on success. (Daniel Hahler, closes #4659)
diff --git a/.travis.yml b/.travis.yml
index 7750308..cff5c44 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -142,8 +142,11 @@
       "${SRCDIR}"/vim --not-a-term -u NONE -S "${SRCDIR}"/testdir/if_ver-2.vim -c quit > /dev/null
       cat if_ver.txt
     fi
-  - do_test make ${SHADOWOPT} ${TEST}
-  - echo -en "travis_fold:end:test\\r\\033[0K"
+  - |
+    if do_test make ${SHADOWOPT} ${TEST}; then
+      echo -en "travis_fold:end:test\\r\\033[0K"
+    fi
+
 
 # instead of a 2*2*8 matrix (2*os + 2*compiler + 8*env),
 # exclude some builds on mac os x and linux
diff --git a/src/version.c b/src/version.c
index a2137cc..ec0f7a0 100644
--- a/src/version.c
+++ b/src/version.c
@@ -778,6 +778,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1669,
+/**/
     1668,
 /**/
     1667,