chore(ansible): clean up host_vars YAML and normalize mail text blocks

host_vars/o27.oopen.de/o27-common.yml

@@ -6,10 +6,10 @@
 
 
 # If true, all additional files in /etc/network/interfaces/interfaces.d/ are deleted
-network_manage_devices: True
+network_manage_devices: true
 
 # Should the interfaces be reloaded after config change?
-network_interface_reload: False
+network_interface_reload: false
 
 network_interface_path: /etc/network/interfaces.d
 network_interface_required_packages:
@@ -62,15 +62,15 @@ network_interfaces:
     #      - 91.239.100.100   # anycast.censurfridns.dk
     #    search: warenform.de
     #
-    #nameservers:
+    # nameservers:
     #  - 185.12.64.1
     #  - 2a01:4ff:ff00::add:2
     #  - 185.12.64.2
     #  - 2a01:4ff:ff00::add:1
-    #search:
+    # search:
 
     # optional additional subnets/ips subnets: []
-    # subnets: 
+    # subnets:
     #   - '192.168.123.0/24'
     #   - '192.168.124.11/32'
 
@@ -115,7 +115,6 @@ network_interfaces:
     post-down: [] # post-down script lines
 
 
-
   - device: br0
     family: inet6
     method: static
@@ -209,7 +208,7 @@ resolved_nameserver:
 # If there are more than one search domains, then specify them here in the order in which
 # the resolver should also search them
 #
-#resolved_domains: []
+# resolved_domains: []
 resolved_domains:
   - ~.
   - oopen.de
@@ -219,7 +218,7 @@ resolved_dnssec: false
 # dns.as250.net: 194.150.168.168
 #
 resolved_fallback_nameserver:
-   - 194.150.168.168
+  - 194.150.168.168
 
 
 # ---