MFH (r314778): use reallocarray(3) for extra bounds checks
MFH (r333306): fix typo in man page
MFH (r333571, r333572): preserve if-modified-since across redirects
MFH (r334317): simplify the DEBUG macro
MFH (r334319): style bug roundup
MFH (r334326): fix netrc file location logic, improve netrcfd handling
MFH (r338572): fix end-of-transfer statistics, improve no-tty display

PR: 202424, 224426, 228017