Make CHANGELOG punctuation consistent

CHANGELOG.rst

@@ -9,21 +9,21 @@ project endeavours to adhere to `Semantic Versioning`_.
 1.0.0 -- 2017-04-01
 -------------------
 
-- ADDED: Automatically suppress colouring when the STDOUT is not a TTY.
-- ADDED: Honcho now exposes a HONCHO_PROCESS_NAME environment variable to its
+* ADDED: Automatically suppress colouring when the STDOUT is not a TTY.
+* ADDED: Honcho now exposes a HONCHO_PROCESS_NAME environment variable to its
   child processes which contains the name of the process (e.g. ``web.1``,
   ``worker.2``, etc.)
-- ADDED: All subcommands now support ``--no-colour`` and ``--no-prefix`` options
+* ADDED: All subcommands now support ``--no-colour`` and ``--no-prefix`` options
   to suppress ANSI coloured output and the logging prefix, respectively.
-- CHANGED: The Upstart configuration generated by the Upstart exporter no longer
+* CHANGED: The Upstart configuration generated by the Upstart exporter no longer
   creates a log directory to which to send process output, in favour of relying
   on Upstart's built-in job logging support (present since at least Upstart
   1.4).
 
 0.7.1 -- 2016-04-13
 -------------------
 
-- FIXED: Honcho now correctly pays attention to the ``-f`` argument when
+* FIXED: Honcho now correctly pays attention to the ``-f`` argument when
   provided before a command, fixing a regression introduced in the previous
   version. Thanks to Marc Krull for reporting and fixing.