commit: restore --edit when combined with --fixup

Recent changes to --fixup, adding amend suboption, caused the
--edit flag to be ignored as use_editor was always set to zero.

Restore edit_flag having higher priority than fixup_message when
deciding the value of use_editor by moving the edit flag condition
later in the method.

Signed-off-by: Joel Klinghed <the_jk@spawned.biz>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/builtin/commit.c b/builtin/commit.c
index 243c626..7c9b1e7 100644
--- a/builtin/commit.c
+++ b/builtin/commit.c
@@ -1253,8 +1253,6 @@ static int parse_and_validate_options(int argc, const char *argv[],
 
 	if (logfile || have_option_m || use_message)
 		use_editor = 0;
-	if (0 <= edit_flag)
-		use_editor = edit_flag;
 
 	/* Sanity check options */
 	if (amend && !current_head)
@@ -1344,6 +1342,9 @@ static int parse_and_validate_options(int argc, const char *argv[],
 		}
 	}
 
+	if (0 <= edit_flag)
+		use_editor = edit_flag;
+
 	cleanup_mode = get_cleanup_mode(cleanup_arg, use_editor);
 
 	handle_untracked_files_arg(s);