ansible-galaxy role info - fix unhandled AttributeError

* catch GalaxyError instead of its base class to ensure it will have a http_error attribute

changelogs/fragments/a-g-role-fix-catching-exception.yml

@@ -0,0 +1,2 @@
+bugfixes:
+  - ansible-galaxy role info - fix unhandled AttributeError by catching the correct exception.

lib/ansible/cli/galaxy.py

@@ -28,7 +28,7 @@ from ansible import context
 from ansible.cli.arguments import option_helpers as opt_help
 from ansible.errors import AnsibleError, AnsibleOptionsError
 from ansible.galaxy import Galaxy, get_collections_galaxy_meta_info
-from ansible.galaxy.api import GalaxyAPI
+from ansible.galaxy.api import GalaxyAPI, GalaxyError
 from ansible.galaxy.collection import (
     build_collection,
     download_collections,
@@ -1220,7 +1220,7 @@ class GalaxyCLI(CLI):
                 remote_data = None
                 try:
                     remote_data = self.api.lookup_role_by_name(role, False)
-                except AnsibleError as e:
+                except GalaxyError as e:
                     if e.http_code == 400 and 'Bad Request' in e.message:
                         # Role does not exist in Ansible Galaxy
                         data = u"- the role %s was not found" % role