Squashed 'lisps-packets/yasnippet/' content from commit c2373fc

git-subtree-dir: lisps-packets/yasnippet
git-subtree-split: c2373fcb1b2d2fb0d4eb66950d78d798473e6786
Merge commit '0f01ce2a84c93aaae1a394093ad236ba62edeb39' as 'lisps-packets/yasnippet'
change the yasnippt about do, for, if