Merge branch 'jk/all-negative-diff-filter-fix'

A diff-filter with negative-only specification like "git log
--diff-filter=d" did not trigger correctly, which has been fixed.

* jk/all-negative-diff-filter-fix:
  setup_revisions(): turn on diffs for all-negative diff filter

Author: gitster

revision.c

@@ -3112,7 +3112,7 @@ int setup_revisions(int argc, const char **argv, struct rev_info *revs, struct s
 
 	/* Pickaxe, diff-filter and rename following need diffs */
 	if ((revs->diffopt.pickaxe_opts & DIFF_PICKAXE_KINDS_MASK) ||
-	    revs->diffopt.filter ||
+	    revs->diffopt.filter || revs->diffopt.filter_not ||
 	    revs->diffopt.flags.follow_renames)
 		revs->diff = 1;
 

t/t4202-log.sh

@@ -134,6 +134,12 @@ test_expect_success 'diff-filter=D' '
 
 '
 
+test_expect_success 'all-negative filter' '
+	git log --no-renames --format=%s --diff-filter=d HEAD >actual &&
+	printf "%s\n" fifth fourth third second initial >expect &&
+	test_cmp expect actual
+'
+
 test_expect_success 'diff-filter=R' '
 
 	git log -M --pretty="format:%s" --diff-filter=R HEAD >actual &&