Correct casing of IPv6AcceptRA.

Author: kpfleming

CHANGELOG.md

@@ -21,6 +21,10 @@ for emergencies or non-content releases).
 - Use proper spelling of 'drop-in', which resulted in a parameter name
   changing from `dropin_for` to `drop_in_for`.
 
+### Changed
+
+- Correct casing of 'IPv6AcceptRA' in network role.
+
 ## [25.5.0] - 2025-06-26
 
 ### Added

src/roles/network/templates/network.j2

@@ -86,7 +86,7 @@
 
 {% endif %}
 {% if "ipv6acceptra" in network -%}
-[IPV6AcceptRA]
+[IPv6AcceptRA]
 {% for arg, value in network.ipv6acceptra.items() %}
 {% if value is string or value is integer %}
 {{ network_ipv6acceptra_arguments[arg] }}={{ value }}