Less version 381

Version 381 was released on 17 Jan 2003.

These are the differences between version 378 and version 381:

• New -L option to disable LESSOPEN processing.
• Further support for large (64 bit) file addressing. Large file support is now set up by the configure script.
• Use autoconf 2.54. Replace configure.in, acconfig.h, defines.h.top with configure.ac.
• Overstriking underscore with underscore is now bold or underlined depending on context.
• Use only 7 spaces for line numbers in -N mode, if possible.
• Fix some bugs in handling overstriking in UTF-8 files.
• Fix some nroff issues in the man page.