Use >/dev/null 2>&1 instead of just 2>/dev/null when sourcing
master-link.sh and calling chain_add_block, mesh_init, peer_add,
factory_trust_peer, and gossip_sync to prevent p2p-mesh.sh usage
text and block hashes from corrupting CGI JSON responses.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
