Fix some compile warnings.
Fix some compile warnings.

phusion/passenger,cgvarela/passenger,phusion/passenger,kewaunited/passenger,kewaunited/passenger,erikogan/passenger,erikogan/passenger,openSUSE/passenger,jawj/passenger,fabiokung/passenger-debian,bf4/passenger,clemensg/passenger,bf4/passenger,phusion/passenger,kewaunited/passenger,pkmiec/passenger,jawj/passenger,fabiokung/passenger-debian,gravitystorm/passenger,bf4/passenger,fabiokung/passenger-debian,fabiokung/passenger-debian,pkmiec/passenger,gravitystorm/passenger,kewaunited/passenger,gravitystorm/passenger,pkmiec/passenger,antek-drzewiecki/passenger,gravitystorm/passenger,kewaunited/passenger,bf4/passenger,cgvarela/passenger,phusion/passenger,cgvarela/passenger,cgvarela/passenger,kewaunited/passenger,openSUSE/passenger,phusion/passenger,pkmiec/passenger,erikogan/passenger,clemensg/passenger,cgvarela/passenger,jawj/passenger,fabiokung/passenger-debian,clemensg/passenger,pkmiec/passenger,openSUSE/passenger,cgvarela/passenger,openSUSE/passenger,gravitystorm/passenger,erikogan/passenger,bf4/passenger,clemensg/passenger,antek-drzewiecki/passenger,jawj/passenger,jawj/passenger,bf4/passenger,pkmiec/passenger,clemensg/passenger,kewaunited/passenger,antek-drzewiecki/passenger,cgvarela/passenger,antek-drzewiecki/passenger,antek-drzewiecki/passenger,jawj/passenger,antek-drzewiecki/passenger,jawj/passenger,clemensg/passenger,pkmiec/passenger,kewaunited/passenger,clemensg/passenger,openSUSE/passenger,antek-drzewiecki/passenger,phusion/passenger,phusion/passenger,phusion/passenger,antek-drzewiecki/passenger,erikogan/passenger,cgvarela/passenger,openSUSE/passenger,clemensg/passenger,bf4/passenger,erikogan/passenger,gravitystorm/passenger,fabiokung/passenger-debian