packages: tig: update tig to 1.2.1.

packages: tig: update tig to 1.2.1.

http://jonas.nitro.dk/tig/NEWS.html says:

Incompatibilities:

    Move manual and man pages to doc/ directory and rename AsciiDoc files
    to have .asciidoc as the extension to make them render on GitHub.

Improvements:

    Show blob sizes in the tree view either as bytes or using binary
    unit prefixes. Example: set show-file-size = units. (GH #163)

    Reduce main view memory usage and startup time, especially when
    revision graph rendering is disabled. (GH #160)

Bug fixes:

    Fix submodule-related setup to check for non-zero return value from
    setenv(). (GH #188)

[juhosg: add ccommit message, fix md5sum]

Signed-off-by: Francisco Borges <francisco.borges@gmail.com>
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
git-svn-id: svn://svn.openwrt.org/openwrt/packages@38468 3c298f89-4303-0410-b956-a3cf2f4a3e73