contrib/shell/kedifa_generateauth: Expand paths which end up in the config

So they are independent from PWD, but without expanding symlinks.

contrib/shell/kedifa_generateauth

@@ -30,8 +30,8 @@ if [ $# -ne 5 ]; then
 fi
 
 kedifa_url_base="$(printf '%s\n' "$1" | sed 's:\(/generateauth\|\?auth=\)$::')"
-cafile="$2"
-crlfile="$3"
+cafile="$(realpath --no-symlinks "$2")"
+crlfile="$(realpath --no-symlinks "$3")"
 domain="$4"
 config_base="$5"