Checking in code the right keyword is "enabled" and not "enable".
In addition the comment was also completed:
This could appear useless because the "defaults" sections not
yet apply on "peers" sections, but it could be the case in the future.
This statement can currently cancel a previous "disabled" keyword in
the same section.
This patch should be backported in all supported branches (keyword
is present since 1.5)
See also: "server" and section 5 about server options
-enable
- This re-enables a disabled peers section which was previously disabled.
+enabled
+ This re-enables a peers section which was previously disabled via the
+ "disabled" keyword.
log <address> [len <length>] [format <format>] [sample <ranges>:<sample_size>]
<facility> [<level> [<minlevel>]]