git_changelog: improve instructions for finding branch commits
Specifically, use '--summary' with 'git show'.
Branch
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master
Details
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http://git.postgresql.org/pg/commitdiff/854854019a282b6e74f586a3ee8c88c791193d32
Modified Files
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src/tools/git_changelog | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)