Update MANPATH according to FHS
 Add */share/man to default MANPATH value in manpage installation script.
 At least /usr/share/man and /opt/<package>/share/man are mandated by FHS.
 /usr/local/share/man also gets mentioned as alternative to /usr/local/man.
Author: Sergey Romanov <schragge@gmail.com>
Cast pointers as long to silence compiler warning
 On most 64-bit architectures, casting pointer expression to int means cutting
 off high-order bits. There are special types intptr_t and ptrdiff_t for it.
Author: Sergey Romanov <schragge@gmail.com>
Fix formatting of README generated by Makefile
 Add semicolons to get the intended result.
Author: Sergey Romanov <schragge@gmail.com>
Patch Makefile.in to remove generated doc/elvfmt.man
Origin: vendor, Debian
Author: Sergey Romanov <schragge@gmail.com>
Fix two typos in the Elvis Manual
 Also undo corruption done by automatically patching Elvis version with
 sed from Makefile. Makefile gets fixed in another patch (08_make_destdir).
Author: Sergey Romanov<schragge@gmail.com>