Log Message:
most: update to 5.1.0.

Changes since 5.0.0
1. src/Makefile.in: Install docs in $prefix/share/doc
2. src/most.h,sysdep.c: win32-specific patches (Andrew Wu)
3. most.1: Typo corrected (Stephane Blondon)
4. src/line.c: removed redundant switch in the most_forward_columns
   function.
5. src/buffer.c: avoid call to SLutf8_skip_char if the character is
   ascii.
6. src/file.c: Added an option to most_read_file_dsc to skip the line
   count and made use of it in search.c to speed up the searches a bit.
7. src/display.c: When wrapping a line, the color was not "wrapping".
8. src/line.c: When moving forward n columns, skip over trailing 0
   length color escape sequences.
9. src/buffer.c: If a color escape sequence occurs at the end of a
   line line whose display width is equal to the terminal width, do
   not wrap the line.
10. src/keym.c: Limit the amount of loops when going to the end of the
    buffer.  It is possible for a run-away process to write to a
    logfile that most is viewing causing it to loop forever seeking the
    end of the file, which may never come.
11. src/help.c: Change DELETE to BACKSPACE.  file.c: Indicate that
    chdir return value is being ignored.
12. configure,autoconf/*: Updated configure script and related files.
13. src/most.c: when acting as `cat`, a file pointer was not being
    closed (George Danchev).
14. src/*.c: Removed some unused variables.
15. configure: Use /etc/ld.so.conf to located system lib paths.
16. autoconf/*: updates
17. src/line.c, buffer.c: Fixed an issue with the display of
    double-width characters to address
    <https://bugs.launchpad.net/ubuntu/+source/most/+bug/312454>.
18. src/*.[ch]: Updated copyright year
19. src/search.c: Rewrote the search functions from scratch.  Both
    ordinary and regexp searches are now supported.  Use -r to startup
    with regular-expression searches.
20. src/keym.c: Added support for Home/End keys (top/bottom of buffer).
21. src/line.c: Added a work-around for programs that try colorize the
    output using the clear-to-end-of-line escape sequence (ESC[K)
    without regard for the value of isatty(fileno(sdout)).  Most will
    ignore ESC[K unless invoked with -v.
22. configure: Updated to use aclocal.m4 v0.3.3-1
23. src/Makefile.in: Added LDFLAGS to chkslang linker line (Denis Pronin)
24. *: Converted the man page source most.1 to text-macro, and
    regenerated it.  Updated copyrights for upcoming release.
25. Updated manifest and copyrights updated for 2019 release.