Print git commits body lines joined in one line

Question

How can I print git commits to print only body (commit message without title) but in one line? So commit body lines are joined, possibly separated with space, and printed as

Answer 1

git rev-list master |
    while read sha1; do
        git show -s --format='%B' $sha1 | tr -d '\n'; echo
    done

Let me explain:

git rev-list master

List SHA1 IDs of commits in the branch.

    while read sha1; do

Run a loop over every SHA1.

        git show -s --format='%B' $sha1

Show the body of the commit.

        tr -d '\n'

Remove all line endings.

        echo

Add one newline at the end.