From: Karl Hasselström <kha@treskal.com>
Date: Sun, 21 Sep 2008 12:17:41 +0000 (+0200)
Subject: Don't write a log entry if there were no changes
X-Git-Tag: v0.15-rc1~143
X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~mdw/git/stgit/commitdiff_plain/67b01c133fea32df4041ef68cb6d6f4d8fa1189e?hp=67b01c133fea32df4041ef68cb6d6f4d8fa1189e

Don't write a log entry if there were no changes

Some commands end up calling log_entry() without verifying that they
did in fact change anything. (One example of this is a conflicting
push, which will log two entries, everything else and the conflicting
push, with the "everything else" part being empty if there was only
one patch to push.) So before appending to the log, make sure that the
entry we're appending isn't a no-op.

Signed-off-by: Karl Hasselström <kha@treskal.com>
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