Config loading fails

[olttwa]

kube-tmuxp fails to load config when path not given.

# Doesn't work
$ kube-tmuxp gen
Using config file: /Users/a/.kube-tmuxp.yaml
open : no such file or directory

$ cat /Users/a/.kube-tmuxp.yaml
projects:
  - name: gcp-project-name
    clusters:
      - name: k8s-cluster-name
        zone: zone-south1-b
        context: k8s-context
        envs:
          FOO: bar

# Works
$ cd ~; kube-tmuxp gen --config '.kube-tmuxp.yaml'
Using config file: .kube-tmuxp.yaml
Cluster: gojek-integration
Deleting exisiting context...
Adding context...
Fetching cluster endpoint and auth data.
kubeconfig entry generated for gojek-integration.
Renaming context...
Creating tmuxp config...

# Works
$ kube-tmuxp gen --config '/Users/a/.kube-tmuxp.yaml'
Using config file: /Users/a/.kube-tmuxp.yaml
Cluster: gojek-integration
Deleting exisiting context...
Adding context...
Fetching cluster endpoint and auth data.
kubeconfig entry generated for gojek-integration.
Renaming context...
Creating tmuxp config...