Replace port 35357 with 5000 for "auth_url"

Based on the change in Keystone Install Guide [1],
this patch replace port 35357 with 5000 for "auth_url".

For more details, please check similar changes which have been done
on other projects: Nova [2], Neutron [3], Cinder [4], Glance [5].

[1] https://review.openstack.org/#/c/541857
[2] https://review.openstack.org/#/c/562812
[3] https://review.openstack.org/#/c/566491
[4] https://review.openstack.org/#/c/565464
[5] https://review.openstack.org/#/c/558932

Change-Id: I4faabbb107f912c7ed1cc5d3467ea5a94197d4a0

Author: Nguyen Van Duc

doc/source/cli/man/openstack.rst

@@ -278,14 +278,14 @@ The keys match the :program:`openstack` global options but without the
     clouds:
       devstack:
         auth:
-          auth_url: http://192.168.122.10:35357/
+          auth_url: http://192.168.122.10:5000/
           project_name: demo
           username: demo
           password: 0penstack
         region_name: RegionOne
       ds-admin:
         auth:
-          auth_url: http://192.168.122.10:35357/
+          auth_url: http://192.168.122.10:5000/
           project_name: admin
           username: admin
           password: 0penstack

doc/source/configuration/index.rst

@@ -61,14 +61,14 @@ The keys match the :program:`openstack` global options but without the
     clouds:
       devstack:
         auth:
-          auth_url: http://192.168.122.10:35357/
+          auth_url: http://192.168.122.10:5000/
           project_name: demo
           username: demo
           password: 0penstack
         region_name: RegionOne
       ds-admin:
         auth:
-          auth_url: http://192.168.122.10:35357/
+          auth_url: http://192.168.122.10:5000/
           project_name: admin
           username: admin
           password: 0penstack
@@ -121,7 +121,7 @@ domain name as shown in the example below:
     clouds:
       devstack:
         auth:
-          auth_url: http://192.168.122.10:35357/
+          auth_url: http://192.168.122.10:5000/
           project_name: demo
           username: demo
           password: 0penstack
@@ -171,7 +171,7 @@ By setting `log_level` or `log_file` in the configuration
     clouds:
       devstack:
         auth:
-          auth_url: http://192.168.122.10:35357/
+          auth_url: http://192.168.122.10:5000/
           project_name: demo
           username: demo
           password: 0penstack
@@ -182,7 +182,7 @@ By setting `log_level` or `log_file` in the configuration
           level: info
       ds-admin:
         auth:
-          auth_url: http://192.168.122.10:35357/
+          auth_url: http://192.168.122.10:5000/
           project_name: admin
           username: admin
           password: 0penstack