From: Daniel Mack <zonque@gmail.com>
Date: Thu, 20 Feb 2014 16:24:36 +0000 (+0100)
Subject: journal: fix compiler warning in journal_file_append_data()
X-Git-Tag: v210~118
X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=commitdiff_plain;h=748db5928c573fd699cd88f32fe21a456fa46d3e;hp=748db5928c573fd699cd88f32fe21a456fa46d3e;p=elogind.git

journal: fix compiler warning in journal_file_append_data()

gcc (4.8.2, arm) does not understand that journal_file_append_field()
will always set 'fo' when it returns 0, so this warning is bogus.

Anyway, fix it by initialiting fo = NULL.
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