CI: test on Go 1.12.x, cleanup

We can also use the apt addon to install packages. We also don't need
fast_finish, since we don't use allow_failures anywhere.

Finally, the 'go get' line was pointless, as all dependencies are
vendored, and 'go test' will catch build failures.

.travis.yml

@@ -1,19 +1,18 @@
-sudo: true
-before_install:
-    - sudo apt-get update && sudo apt-get install -y pass gnupg
+addons:
+  apt:
+    packages:
+    - pass
+    - gnupg
 
 language: go
-go_import_path: gopkg.in/Netflix-Skunkworks/go-jira.v1
-go:
-  - 1.9
 
-matrix:
-  fast_finish: true
-  
+go_import_path: gopkg.in/Netflix-Skunkworks/go-jira.v1
+
+go:
+  - 1.12.x
+
 script:
-  - go get -t -v ./...
   - go test ./...
   - go vet -composites=false ./...
   - make
   - make prove 2>&1
-  

jiracmd/componentAdd.go

@@ -52,9 +52,8 @@ func CmdComponentAddUsage(cmd *kingpin.CmdClause, opts *ComponentAddOptions) err
 func CmdComponentAdd(o *oreo.Client, globals *jiracli.GlobalOptions, opts *ComponentAddOptions) error {
 	var err error
 	component := &jiradata.Component{}
-	var resp *jiradata.Component
 	err = jiracli.EditLoop(&opts.CommonOptions, &opts.Component, component, func() error {
-		resp, err = jira.CreateComponent(o, globals.Endpoint.Value, component)
+		_, err = jira.CreateComponent(o, globals.Endpoint.Value, component)
 		return err
 	})
 	if err != nil {