rodjek/vim-puppet — pull request #23 by DexterTheDragon (2013-08-13 23:52:07+00:00)
Title: Use backslash to escape keywordprg whitespace

According to `:help option-backslash` "the double quote character starts a comment". So in order to include spaces in the keywordprg command they have to be escaped with a backslash.