Bug#424329: pitivi: FTBFS if built twice in a row

[Loïc Minier]

 This is due to this construct in the toplevel Makefile.am:
locale-uninstalled:
        if test -d po; then \
        cd po; \
        make datadir=../$(top_builddir) install; \
        fi


-- 
Loïc Minier