Merge branch 'kk/maint-1.7.9-commit-tree' into kk/maint-commit-tree

* kk/maint-1.7.9-commit-tree:
commit-tree: resurrect command line parsing updates

diff --combined builtin/commit-tree.c
index 164b655df93fea1ec2f63f5238c1ad7a377c8385,792670a9d18bc8e5126fe56c8755f9ac036a7728..a0df12ce16abda416fc9f33448bc895e74f4b0d1
--- 1/builtin/commit-tree.c
--- 2/builtin/commit-tree.c
+++ b/builtin/commit-tree.c
@@@ -48,9 -48,6 +48,6 @@@ int cmd_commit_tree(int argc, const cha
        if (argc < 2 || !strcmp(argv[1], "-h"))
                usage(commit_tree_usage);
  
-       if (get_sha1(argv[1], tree_sha1))
-               die("Not a valid object name %s", argv[1]);
- 
        for (i = 1; i < argc; i++) {
                const char *arg = argv[i];
                if (!strcmp(arg, "-p")) {
@@@ -116,7 -113,7 +113,7 @@@
                        die_errno("git commit-tree: failed to read");
        }
  
 -      if (commit_tree(buffer.buf, tree_sha1, parents, commit_sha1,
 +      if (commit_tree(&buffer, tree_sha1, parents, commit_sha1,
                        NULL, sign_commit)) {
                strbuf_release(&buffer);
                return 1;