Update post-install trigger to fix random shit

[ryukinix]

Currently I'm having problems to use that cancer after some upgrade on main system libraries. Trying to execute warsaw I get it:

/usr/bin/warsaw/core: symbol lookup error: /usr/local/lib/warsaw/librt.so.1: undefined symbol: __clock_nanosleep, version GLIBC_PRIVATE

It seems someone fixed with that on post-install:

sudo rm ld-linux-x86-64.so.2 && sudo ln -s /usr/lib/ld-linux-x86-64.so.2 .
sudo rm libc.so.6 && sudo ln -s /usr/lib/libc.so.6 .
sudo rm libpthread.so.0 && sudo ln -s /usr/lib/libpthread.so.0 .
sudo rm libdl.so.2 && sudo ln -s /usr/lib/libdl.so.2 .
sudo rm librt.so.1 && ln -s /usr/lib/librt.so.1 .

I should consider do the same automatically. ref: https://aur.archlinux.org/packages/warsaw/?O=0&PP=10#comment-737008