Fix short_description flag in plugins, role modules and templates

Before "short description" was used in most plugins, modules and also
in the new module templates.

ansible-doc was therefore not showing the short description. To fix the
issue the flag was renamed to short_description instead.

Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=2121362
       'ansible-doc' -l lists most idm modules as 'UNDOCUMENTED'

roles/ipaserver/library/ipaserver_enable_ipa.py

@@ -34,7 +34,7 @@ ANSIBLE_METADATA = {
 DOCUMENTATION = '''
 ---
 module: ipaserver_enable_ipa
-short description: Enable IPA
+short_description: Enable IPA
 description: Enable IPA
 options:
   hostname:

roles/ipaserver/library/ipaserver_load_cache.py

@@ -34,7 +34,7 @@ ANSIBLE_METADATA = {
 DOCUMENTATION = '''
 ---
 module: ipaserver_load_cache
-short description: Load cache file
+short_description: Load cache file
 description: Load cache file
 options:
   dm_password:

roles/ipaserver/library/ipaserver_master_password.py

@@ -34,7 +34,7 @@ ANSIBLE_METADATA = {
 DOCUMENTATION = '''
 ---
 module: ipaserver_master_password
-short description: Generate kerberos master password if not given
+short_description: Generate kerberos master password if not given
 description:
   Generate kerberos master password if not given
 options:

roles/ipaserver/library/ipaserver_prepare.py

@@ -34,7 +34,7 @@ ANSIBLE_METADATA = {
 DOCUMENTATION = '''
 ---
 module: ipaserver_prepare
-short description: Prepare IPA server deployment
+short_description: Prepare IPA server deployment
 description: Prepare IPA server deployment
 options:
   force:

roles/ipaserver/library/ipaserver_set_ds_password.py

@@ -34,7 +34,7 @@ ANSIBLE_METADATA = {
 DOCUMENTATION = '''
 ---
 module: ipaserver_set_ds_password
-short description: Set DS password
+short_description: Set DS password
 description: Set DS password
 options:
   dm_password:

roles/ipaserver/library/ipaserver_setup_adtrust.py

@@ -34,7 +34,7 @@ ANSIBLE_METADATA = {
 DOCUMENTATION = '''
 ---
 module: ipaserver_setup_adtrust
-short description: Setup trust ad
+short_description: Setup trust ad
 description: Setup trust ad
 options:
   hostname:

roles/ipaserver/library/ipaserver_setup_ca.py

@@ -34,7 +34,7 @@ ANSIBLE_METADATA = {
 DOCUMENTATION = '''
 ---
 module: ipaserver_setup_ca
-short description: Setup CA
+short_description: Setup CA
 description: Setup CA
 options:
   dm_password:

roles/ipaserver/library/ipaserver_setup_custodia.py

@@ -34,7 +34,7 @@ ANSIBLE_METADATA = {
 DOCUMENTATION = '''
 ---
 module: ipaserver_setup_custodia
-short description: Setup custodia
+short_description: Setup custodia
 description: Setup custodia
 options:
   realm:

roles/ipaserver/library/ipaserver_setup_dns.py

@@ -34,7 +34,7 @@ ANSIBLE_METADATA = {
 DOCUMENTATION = '''
 ---
 module: ipaserver_setup_dns
-short description: Setup DNS
+short_description: Setup DNS
 description: Setup DNS
 options:
   ip_addresses:

roles/ipaserver/library/ipaserver_setup_ds.py

@@ -34,7 +34,7 @@ ANSIBLE_METADATA = {
 DOCUMENTATION = '''
 ---
 module: ipaserver_setup_ds
-short description: Configure directory server
+short_description: Configure directory server
 description: Configure directory server
 options:
   dm_password:

roles/ipaserver/library/ipaserver_setup_http.py

@@ -34,7 +34,7 @@ ANSIBLE_METADATA = {
 DOCUMENTATION = '''
 ---
 module: ipaserver_setup_http
-short description: Setup HTTP
+short_description: Setup HTTP
 description: Setup HTTP
 options:
   dm_password:

roles/ipaserver/library/ipaserver_setup_kra.py

@@ -34,7 +34,7 @@ ANSIBLE_METADATA = {
 DOCUMENTATION = '''
 ---
 module: ipaserver_setup_kra
-short description: Setup KRA
+short_description: Setup KRA
 description: Setup KRA
 options:
   dm_password:

roles/ipaserver/library/ipaserver_setup_krb.py

@@ -34,7 +34,7 @@ ANSIBLE_METADATA = {
 DOCUMENTATION = '''
 ---
 module: ipaserver_setup_krb
-short description: Setup KRB
+short_description: Setup KRB
 description: Setup KRB
 options:
   dm_password:

roles/ipaserver/library/ipaserver_setup_ntp.py

@@ -34,7 +34,7 @@ ANSIBLE_METADATA = {
 DOCUMENTATION = '''
 ---
 module: ipaserver_setup_ntp
-short description: Setup NTP
+short_description: Setup NTP
 description: Setup NTP
 options:
   ntp_servers:

roles/ipaserver/library/ipaserver_setup_otpd.py

@@ -34,7 +34,7 @@ ANSIBLE_METADATA = {
 DOCUMENTATION = '''
 ---
 module: ipaserver_setup_otpd
-short description: Setup OTPD
+short_description: Setup OTPD
 description: Setup OTPD
 options:
   realm:

roles/ipaserver/library/ipaserver_test.py

@@ -34,7 +34,7 @@ ANSIBLE_METADATA = {
 DOCUMENTATION = '''
 ---
 module: ipaserver_test
-short description: IPA server test
+short_description: IPA server test
 description: IPA server test
 options:
   force: