_c_copyright_header and _ipglob_copyright_header are almost identical.
Replace by copyright_header, interpolate variable parts with printf.
(wrmakesrc, wrauth, wrgamesdef): Make generated file comments match
our usual style a bit more closely.
(wrgamesdef): Fix generated comment on overwrite.
upda,ef_open,logerror,emp_config,match_user,show_motd,gamedown,
typed_wu,delete_old_announcements,mobility_check,mobility_init,
allocate_memory,write_newcap_script,main,files,fairland,doconfig,)
[_WIN32]: Switchback to default mode of text.
"t" (text) is not included the ISO/ANSI C standard but "b" (binary)
is included.
thread entrypoints:
(lwpSelect, shutdown_sequence): Parameters didn't match thread entry
point prototype.
(lwpEntryPoint): Arguments didn't match thread entry point prototype.
Change linkage of functions without prototype declaration to static
where possible.
Remove some superflous declarations, replace others by suitable
includes.
EMPPATH() to use EMPDIR. This avoids triggering MSVC bugs, and drops
support for traditional, pre-ISO cpp. Closes#753935.
(gamedir, lostfil, playerbin, updatebin): Unused, remove.
