Add grep to fix missing newline

bin/dissect_url

     test -n "$Url" \
      && dissect \
      && return 0
-    while read -r Url;
-    do
-        ((i++))
-        printf '=== url %02d =============================================\n' $i
-        dissect
-    done
+    grep . \
+      | while read -r Url;
+        do
+            ((i++))
+            printf '=== url %02d =============================================\n' $i
+            dissect
+        done
 }
 
 main "$@"