Show help when running vdirsyncer
Show help when running vdirsyncer

See #12

hobarrera/vdirsyncer,mathstuf/vdirsyncer,untitaker/vdirsyncer,untitaker/vdirsyncer,hobarrera/vdirsyncer,credativUK/vdirsyncer,tribut/vdirsyncer,mathstuf/vdirsyncer,tribut/vdirsyncer,untitaker/vdirsyncer,credativUK/vdirsyncer