axel: Remove extra slash on PKGBUILD:28
axel: Remove extra slash on PKGBUILD:28

As a result of PR review: https://github.com/Alexpux/MSYS2-packages/pull/1095
mashir43/MSYS2-packages,dscho/MSYS2-packages,git-for-windows/MSYS2-packages,mashir43/MSYS2-packages,git-for-windows/MSYS2-packages,waterlan/MSYS2-packages,PiotrVV/MSYS2-packages,JPeterMugaas/MSYS2-packages,PiotrVV/MSYS2-packages,dscho/MSYS2-packages,mati865/MSYS2-packages,atom2013/MSYS2-packages,juergenpf/MSYS2-packages,JPeterMugaas/MSYS2-packages,atom2013/MSYS2-packages,JPeterMugaas/MSYS2-packages,EchoOfSoul/MSYS2-packages,atom2013/MSYS2-packages,EchoOfSoul/MSYS2-packages,mashir43/MSYS2-packages,dscho/MSYS2-packages,JPeterMugaas/MSYS2-packages,waterlan/MSYS2-packages,git-for-windows/MSYS2-packages,mati865/MSYS2-packages,waterlan/MSYS2-packages,juergenpf/MSYS2-packages,EchoOfSoul/MSYS2-packages,Alexpux/MSYS2-packages,juergenpf/MSYS2-packages,Alexpux/MSYS2-packages,juergenpf/MSYS2-packages,Alexpux/MSYS2-packages,dscho/MSYS2-packages,juergenpf/MSYS2-packages,atom2013/MSYS2-packages,PiotrVV/MSYS2-packages,mati865/MSYS2-packages,PiotrVV/MSYS2-packages,mati865/MSYS2-packages,Alexpux/MSYS2-packages,git-for-windows/MSYS2-packages,EchoOfSoul/MSYS2-packages,mashir43/MSYS2-packages,waterlan/MSYS2-packages