Revert git log formatting

Dist/git_rev.sh

@@ -1,6 +1,6 @@
 echo '['
 git rev-list --ancestry-path $1..$2 | while read sha1; do
     full_diff="$(git show --format='' $sha1 | sed 's/\"/\\\"/g')"
-    git --no-pager show --format="{%n  \"commit_hash\": \"%H\",%n  \"author\": \"%an\",%n  \"date\": \"%ad\",%n  \"commit_message\": '%s',%n }," -s $sha1
+    git --no-pager show --format="{%n  \"commit_hash\": \"%H\",%n  \"author\": \"%an\",%n  \"date\": \"%ad\",%n  \"commit_message\": \"%s\",%n }," -s $sha1
     done
 echo ']'