pkgng: fix #3428; install from local file

Fixes a bug in which the module reported failure
when installing from a local (to the target host)
file path.

Fixes #3428

tests/integration/targets/pkgng/tasks/freebsd.yml

@@ -136,6 +136,28 @@
           - pkgng_example4.changed
           - not pkgng_example4_idempotent.changed
 
+##
+## pkgng - example - Install package from local file
+- name: Create test package
+  import_tasks: create-outofdate-pkg.yml
+
+- name: Install test package from local file
+  pkgng:
+    name: '{{ pkgng_test_outofdate_pkg_path }}'
+  register: pkgng_example_localfile
+
+- name: Remove test package
+  pkgng:
+    name: '{{ pkgng_test_pkg_name }}'
+    state: absent
+  register: pkgng_example_localfile_cleanup
+
+- name: Ensure pkgng installs package from local file
+  assert:
+    that:
+      - pkgng_example_localfile.changed
+      - pkgng_example_localfile_cleanup.changed
+
 ##
 ## pkgng - example - Install multiple packages in one command
 ##