vim-patch: move test_urls.vim out of runtime/

Rename it to check_urls.vim, similar to check-includes.py.

scripts/vim-patch.sh

@@ -179,6 +179,10 @@ preprocess_patch() {
 ' +w +q "$file"
 
   # Rename src/ paths to src/nvim/
+  LC_ALL=C sed -e 's/\( [ab]\/src\)/\1\/nvim/g' \
+    "$file" > "$file".tmp && mv "$file".tmp "$file"
+
+  # Rename path to matchit plugin.
   LC_ALL=C sed -e 's@\( [ab]/runtime\)/pack/dist/opt/matchit/\(plugin/matchit.vim\)@\1/\2@g' \
     "$file" > "$file".tmp && mv "$file".tmp "$file"