Assert copyright.

src/syncterm/Info.plist

src/syncterm/bbslist.c

src/syncterm/bbslist.h

src/syncterm/conn.c

src/syncterm/conn.h

src/syncterm/conn_pty.c

src/syncterm/conn_pty.h

src/syncterm/conn_telnet.c

src/syncterm/conn_telnet.h

src/syncterm/fonts.c

src/syncterm/fonts.h

src/syncterm/htmlwin.cpp

src/syncterm/htmlwin.h

src/syncterm/menu.c

src/syncterm/menu.h

src/syncterm/modem.c

src/syncterm/modem.h

src/syncterm/raw.h

src/syncterm/rlogin.c

src/syncterm/rlogin.h