[pacman-dev] Long functions and other minor fixes

After trying to build pacman3 so I could test something for stonecrest, I found some errors in my patch and Dan's (very small, you forgot to put the label error before return(-1);) while compiling. So below is the better patch than the other patch (which should be ignored). It patches package.c, package.h, and sync.c of libalpm. ~ Jamie / yankees26