patch 8.0.0423: changing 'cinoptions' does not always work

Problem:    The effect of adding "#" to 'cinoptions' is not always removed.
            (David Briscoe)
Solution:   Reset b_ind_hash_comment. (Christian Brabandt, closes #1475)
diff --git a/src/testdir/Make_all.mak b/src/testdir/Make_all.mak
index e1ce151..b7fb15c 100644
--- a/src/testdir/Make_all.mak
+++ b/src/testdir/Make_all.mak
@@ -143,6 +143,7 @@
 	    test_cdo.res \
 	    test_channel.res \
 	    test_charsearch.res \
+	    test_cindent.res \
 	    test_cmdline.res \
 	    test_command_count.res \
 	    test_crypt.res \