Adds comments to connection.cpp

Signed-off-by: Carlos Eduardo Cichon Henriques <cech19@inf.ufpr.br>
7 jobs for issue-Add_comments in 1 minute and 50 seconds (queued for 3 seconds)
Name Stage Failure
failed
pattern Lint
Done processing ../../src/agent/open_file.cpp
Done processing ../../src/agent/parse.cpp
Done processing ../../src/agent/parse_config_file.cpp
Done processing ../../src/agent/parse_proxy_file.cpp
Done processing ../../src/agent/post.cpp
Done processing ../../src/agent/rotate_log_file.cpp
Done processing ../../src/agent/user_history.cpp
Total errors found: 1
ERROR: Job failed: exit code 1