Small fix for stpkg, `local` can only be used inside functions

stpkg

@@ -328,7 +328,7 @@ if [ "x$1" = "x-install" ]; then
     [ "x$STPKG_NO_MSG" = "xyes" ] \
         && echo "!!! STPKG_NO_MSG is turn on, you won't see what's going on during the install"
     shift
-    local REPO_DIR="$(dirname SELF)"
+    REPO_DIR="$(dirname SELF)"
     [ ! "$REPO_DIR" = "$BASE_DIR" ] && die "You must run this script from the root of the sticker repo"
     __install $*
     exit 0