Fix error directory and remove file vimrc.bkp post install

Author: talesam

pkgbuild/PKGBUILD

@@ -14,5 +14,6 @@ sha256sums=('SKIP')
 install=${pkgname}.install
 
 package() {
+    mkdir -p "${pkgdir}/etc/"
     cp "${srcdir}/${pkgname}/etc/vimrc" "${pkgdir}/etc/vimrc"
 }

pkgbuild/biglinux-vim-config.install

@@ -9,5 +9,6 @@ pre_install() {
 post_remove() {
     if [ -f /etc/vimrc.bkp ]; then
         cp -f /etc/vimrc.bkp /etc/vimrc
+        rm -f /etc/vimrc.bkp
     fi
 }