Squashed 'bundle/syntastic/' changes from 2fbd870..c035ac2

c035ac2 The html/validator checker chokes on empty lines in curl output.

git-subtree-dir: bundle/syntastic
git-subtree-split: c035ac24269b999a4caebb5bb7b318ee96614129
Merge commit 'c5c28156e6fe007c5d29c24a0221451ee820e645'