Avoid searching for config file in executable's path
Avoid searching for config file in executable's path

Viper should not be searching for config.{json,toml,yaml,yml}
in the directory where the `hugo` executable binary is located,
i.e. do not try to look for e.g. $GOPATH/bin/config.toml or
/usr/local/bin/config.toml

spf13/viper,vasu1124/viper,streamrail/viper,dvln/viper,sankark/viper,DLag/viper,jrossi/viper,mguindin/viper,zj8487/viper,samt42/viper,niccaluim/viper,akutz/viper,mirrr/viper,ishidawataru/viper,istio/viper,henrylee2cn/viper