Makefile: fix testing of rockspecs, and remove now-redundant warning to upload to github
Makefile: fix testing of rockspecs, and remove now-redundant warning to upload to github

LuaDist/lrexlib-posix,LuaDist/lrexlib-tre,LuaDist/lrexlib-pcre,LuaDist/lrexlib-gnu,StoneDot/lrexlib,LuaDist/lrexlib-gnu,LuaDist/lrexlib-oniguruma,LuaDist/lrexlib-oniguruma,StoneDot/lrexlib,LuaDist/lrexlib-tre,LuaDist/lrexlib-pcre,LuaDist/lrexlib-posix