rpc: Fix off-by-one error in getblockchaininfo help #34393

1. 
   billymcbip commented at 1:46 pm on January 23, 2026: contributor

   Correct the headers field description in getblockchaininfo.

   Analogous to blocks (“the height of the most-work fully-validated chain”), headers reports the height of the best known header chain, not a count.

   I’m open to suggestions regarding the exact wording, I just want to make sure we fix the off-by-one error.

   Sample output:

   0{
   1  "chain": "main",
   2  "blocks": 933527,
   3  "headers": 933527,
   4  ...
   5}
   

2. rpc: Fix off-by-one error in getblockchaininfo help 76c2a3d799
3. DrahtBot added the label RPC/REST/ZMQ on Jan 23, 2026
4. 
   DrahtBot commented at 1:46 pm on January 23, 2026: contributor

   The following sections might be updated with supplementary metadata relevant to reviewers and maintainers.

   Code Coverage & Benchmarks

   For details see: https://corecheck.dev/bitcoin/bitcoin/pulls/34393.

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Contributors
billymcbip DrahtBot

Labels
RPC/REST/ZMQ