Support extrafiles from the same dir as satellite if extrafiles dir doesn't exist

astronaut/astronaut

@@ -192,7 +192,10 @@ getfile() {
 }
 
 extrafile() {
-    cp -a "$(dirname "$_satellite")/extrafiles/$name/$1" "./$1"
+    local dir="$(dirname "$_satellite")"
+    [ -d "$dir/extrafiles" ] && local dir="$dir/extrafiles/$name"
+
+    cp -a "$dir/$1" "./$1"
 }
 
 dlextract() {

astronaut/extrafiles/astronaut

@@ -1 +0,0 @@
-..