Check for leading/trailing spaces in bundle specs
Check for leading/trailing spaces in bundle specs

Warn the user when a leading or trailing space is found in one the
bundle specs they have configured using the Bundle command.

kotamat/vundle,ppslinux/Vundle.vim,ppslinux/Vundle.vim,ppslinux/Vundle.vim,omalsa04/dotfiles,ppslinux/Vundle.vim,TLmaK0/my_vim_config,sensorario/Vundle.vim,kotamat/vundle,stephaneliu/dotfiles,ppslinux/Vundle.vim,kotamat/vundle,stephaneliu/dotfiles,kotamat/vundle,ppslinux/Vundle.vim,omalsa04/dotfiles,kotamat/vundle