Fix typos

configure.ac

scripts/maint/format_changelog.py

src/core/or/congestion_control_common.c

src/core/or/congestion_control_flow.c

src/core/or/congestion_control_nola.c

src/core/or/congestion_control_st.h

src/core/or/congestion_control_westwood.c

src/core/or/dos.c

src/core/or/edge_connection_st.h

src/core/or/half_edge_st.h

src/core/or/lttng_cc.inc

src/feature/dirparse/unparseable.c

src/feature/keymgt/loadkey.c

src/feature/relay/relay_config.c

src/lib/metrics/metrics_store.c

src/lib/thread/compat_winthreads.c