- various clean-ups to pacify rpmlint:
    - uses spaces instead of tabs consistently
    - mark %%{_datadir}/emacs/site-lisp/pari/pariemacs.txt as %%doc
    - mark %%{_datadir}/pari/{PARI,doc,examples} as %%doc
    - don't strip gp so we get debuginfo for it
    - move here documents out to separate source files
    - make gp subpackage require same version-release of main package