Addapt create_test_zimfiles to last zimwriterfs.

lib/src/test/create_test_zimfiles

@@ -9,10 +9,12 @@ die()
 cd "$(dirname "$0")"
 rm -f small.zim
 zimwriterfs -w main.html \
-            -f favicon.png \
-            -l en \
+            -n "Test" \
+            -I favicon.png \
+            -l eng \
             -t "Test ZIM file" \
             -d "N/A" \
+            -L "Test File" \
             -c "N/A" \
             -p "N/A" \
             small_zimfile_data \