acf broken in 'edge'

ACF now complains:

haserl CGI Error

/usr/share/lua/5.1/posix.lua:5: module 'bit' not found:
    no field package.preload['bit']
    no file './bit.lua'
    no file '/usr/local/share/lua/5.1/bit.lua'
    no file '/usr/local/share/lua/5.1/bit/init.lua'
    no file '/usr/local/lib/lua/5.1/bit.lua'
    no file '/usr/local/lib/lua/5.1/bit/init.lua'
    no file '/usr/share/lua/5.1/bit.lua'
    no file '/usr/share/lua/5.1/bit/init.lua'
    no file './bit.so'
    no file '/usr/local/lib/lua/5.1/bit.so'
    no file '/usr/lib/lua/5.1/bit.so'
    no file '/usr/local/lib/lua/5.1/loadall.so'

(from redmine: issue id 2278, created on 2013-10-10, closed on 2013-10-16)

Changesets:
- Revision 3c2b28a3 by Natanael Copa on 2013-10-10T14:26:54Z:

main/lua-posix: the 5.1 version needs lua-bitlib

fixes #2278

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