- typo fix in watchdog() phpdoc
 - add a missing array() on a watchdog call in ping.module
 - handle NULL 'variables' value in syslog module

Noticed these while writing the documentation for watchdog() updates and by comitting the updates into the i18n SVN repository.

- Patch #138376 by dww: fixed array vs. string bug when defining #default_value array for a multiselect.

#136250: The upload directory might exist, but is not writable. Fix error message. Investigated with Moshe Weitzman and Gerhard Killesreiter.

- Patch #137479 by dww: added db_column_exits().  (Yay, the servers are snappy on Saturday evening.)

Leftover variable name spotted by Amr Mostafa, reported by email (because 'the fix is too small and trivial to submit an issue')

- Patch #132018 by alienbrain: replace instances of _module_parse_info_file() with drupal_parse_info_file().

- Patch #137138 by jvandyk: fixed problem with drupal_http_request() not setting the proper error code when a network effect occurs.  Causes the XML-RPC backend to fail.