The awk logic was removing allowed_nodes sections but leaving their
comment headers behind. When multiple sections existed, comments would
accumulate.
New approach:
- Buffer all comment lines encountered outside sections
- When a non-comment line is found, flush buffered comments
- When allowed_nodes is found, discard buffered comments (they belonged
to the section we're removing)
- This cleanly removes section headers like:
'# Cluster nodes (auto-discovered during installation)'
'# These nodes are allowed to request...'
Tested with config containing duplicate allowed_nodes sections - now
correctly produces clean output with all duplicates and headers removed.
rcourtman
3e38159882