};
 
 static const char * const builtin_merge_usage[] = {
-       "git-merge [options] <remote>...",
-       "git-merge [options] <msg> HEAD <remote>",
+       "git merge [options] <remote>...",
+       "git merge [options] <msg> HEAD <remote>",
        NULL
 };
 
        struct object *remote_head;
        unsigned char branch_head[20], buf_sha[20];
        struct strbuf buf = STRBUF_INIT;
+       struct strbuf bname = STRBUF_INIT;
        const char *ptr;
        int len, early;
 
+       strbuf_branchname(&bname, remote);
+       remote = bname.buf;
+
        memset(branch_head, 0, sizeof(branch_head));
        remote_head = peel_to_type(remote, 0, NULL, OBJ_COMMIT);
        if (!remote_head)
        if (!hashcmp(remote_head->sha1, branch_head)) {
                strbuf_addf(msg, "%s\t\tbranch '%s' of .\n",
                        sha1_to_hex(branch_head), remote);
-               return;
+               goto cleanup;
        }
 
        /* See if remote matches <name>^^^.. or <name>~<number> */
                                    sha1_to_hex(remote_head->sha1),
                                    truname.buf + 11,
                                    (early ? " (early part)" : ""));
-                       return;
+                       strbuf_release(&truname);
+                       goto cleanup;
                }
        }
 
                        strbuf_remove(&line, ptr-line.buf+1, 13);
                strbuf_addbuf(msg, &line);
                strbuf_release(&line);
-               return;
+               goto cleanup;
        }
        strbuf_addf(msg, "%s\t\tcommit '%s'\n",
                sha1_to_hex(remote_head->sha1), remote);
+cleanup:
+       strbuf_release(&buf);
+       strbuf_release(&bname);
 }
 
 static int git_merge_config(const char *k, const char *v, void *cb)
                argv = xrealloc(argv, sizeof(*argv) * (argc + 2));
                memmove(argv + 1, argv, sizeof(*argv) * (argc + 1));
                argc++;
-               parse_options(argc, argv, builtin_merge_options,
+               parse_options(argc, argv, NULL, builtin_merge_options,
                              builtin_merge_usage, 0);
                free(buf);
        }
        memset(&opts, 0, sizeof(opts));
        memset(&t, 0, sizeof(t));
        memset(&dir, 0, sizeof(dir));
-       dir.show_ignored = 1;
+       dir.flags |= DIR_SHOW_IGNORED;
        dir.exclude_per_dir = ".gitignore";
        opts.dir = &dir;
 
 
        fp = fopen(git_path("MERGE_MSG"), "a");
        if (!fp)
-               die("Could open %s for writing", git_path("MERGE_MSG"));
+               die("Could not open %s for writing", git_path("MERGE_MSG"));
        fprintf(fp, "\nConflicts:\n");
        for (pos = 0; pos < active_nr; pos++) {
                struct cache_entry *ce = active_cache[pos];
        struct commit_list **remotes = &remoteheads;
 
        setup_work_tree();
+       if (file_exists(git_path("MERGE_HEAD")))
+               die("You have not concluded your merge. (MERGE_HEAD exists)");
        if (read_cache_unmerged())
-               die("You are in the middle of a conflicted merge.");
+               die("You are in the middle of a conflicted merge."
+                               " (index unmerged)");
 
        /*
         * Check if we are _not_ on a detached HEAD, i.e. if there is a
        if (diff_use_color_default == -1)
                diff_use_color_default = git_use_color_default;
 
-       argc = parse_options(argc, argv, builtin_merge_options,
+       argc = parse_options(argc, argv, prefix, builtin_merge_options,
                        builtin_merge_usage, 0);
        if (verbosity < 0)
                show_diffstat = 0;