main
Avoid using %zu or %zd with printf() and fprintf().
Ignore 64-bit time_t warnings in PVS-Studio
user_mailer_env: Quiet dead code warning in bounds check
exec_mailer: use minimal environment for non-root mailer too
Embed struct eventlog into struct log_details instead of using a pointer.
Remove restrict noise
json_parse_string: Fix handling of multiple backslashes before end quote
Use #include <foo.h> instead of #include "foo.h" in most cases.