Fix nits

cmd/root.go

@@ -117,7 +117,7 @@ func JsonnetVM(cmd *cobra.Command) (*jsonnet.VM, error) {
 	for _, extvar := range extvarfiles {
 		kv := strings.SplitN(extvar, "=", 2)
 		if len(kv) != 2 {
-			return nil, fmt.Errorf("Failed to parse ext-str-file: missing '=' in %s", extvar)
+			return nil, fmt.Errorf("Failed to parse %s: missing '=' in %s", flagExtVarFile, extvar)
 		}
 		v, err := ioutil.ReadFile(kv[1])
 		if err != nil {
@@ -152,7 +152,7 @@ func JsonnetVM(cmd *cobra.Command) (*jsonnet.VM, error) {
 	for _, tlavar := range tlavarfiles {
 		kv := strings.SplitN(tlavar, "=", 2)
 		if len(kv) != 2 {
-			return nil, fmt.Errorf("Failed to parse tla-str-file: missing '=' in %s", tlavar)
+			return nil, fmt.Errorf("Failed to parse %s: missing '=' in %s", flagTlaVarFile, tlavar)
 		}
 		v, err := ioutil.ReadFile(kv[1])
 		if err != nil {

cmd/show_test.go

@@ -48,7 +48,7 @@ func TestShow(t *testing.T) {
   "string": "bar",
   "notAVal": "aVal",
   "notAnotherVal": "aVal2",
-	"filevar": "foo",
+  "filevar": "foo\n",
   "array": ["one", 2, [3]],
   "object": {"foo": "bar"}
 }
@@ -69,7 +69,7 @@ func TestShow(t *testing.T) {
 			filepath.FromSlash("../testdata/test.jsonnet"),
 			"-V", "aVar=aVal",
 			"-V", "anVar",
-			"--ext-str-file", "filevar=../testdata/extvar.file",
+			"--ext-str-file", "filevar=" + filepath.FromSlash("../testdata/extvar.file"),
 		})
 
 		t.Log("output is", output)

testdata/extvar.file

-foo
\ No newline at end of file
+foo