Less version 481

Version 481 was released on 2 Sep 2015.

These are the differences between version 458 and version 481:

• Don't overwrite history file; just append to it. This behaves better when multiple sessions are running less simultaneously and using the same history file.
• New command ESC-G goes to end of currently buffered data in a pipe.
• Disable history feature when compiled with LESSHISTFILE set to "-".
• In more-compatible mode, make the -p option apply to every file opened, not just the first one.
• In more-compatible mode, change the -e option to work like -E, not -EF.
• Treat multiple CRs before LF are like one CR (all the CRs are hidden).
• Allow "extra" string in lesskey file to append to a multi-char command (like a search pattern), without executing the command.
• Ignore -u/-U setting while viewing help file, so that underline and bold chars are displayed correctly.
• Improve detection of "binary" files in UTF-8 mode.
• Fix bug with ++ commands.
• Fix bug where prompt was sometimes not displayed with +G.
• Fix possible memory corruption
• Fix bugs and improve performance in ampersand filtering.
• Allow %% escape sequence in LESSOPEN variable.
• Automate construction of Unicode tables from Unicode database.