Merge two regex in one to define version number

Attached patch against Drupal 10.1.x

Setting the Issue status to "Needs Review" since @Nikhil_110 provided a patch in #25.

I will review this patch.

Thanks

Hello,

I reviewed #25, and the patch applied cleanly for me.

urvasi@urvasi-Inspiron-15-3552:/var/www/html/contribution/drupal-2810917$ git apply -v 2810917-25.patch
Checking patch core/modules/locale/locale.compare.inc...
Applied patch core/modules/locale/locale.compare.inc cleanly.

I can confirm that after applying the patch

if (preg_match("/^(\d+\.x-\d+\.).*$/", $data['info']['version'], $matches)) {
  // Example matches: 8.x-1.x-dev, 8.x-1.0-alpha1+5-dev => 8.x-1.x
  $data['info']['version'] = $matches[1] . 'x';
}
elseif (preg_match("/^(\d+\.\d+\.).*$/", $data['info']['version'], $matches)) {
  // Example match: 8.0.0-dev => 8.0.x (Drupal core)

is replaced by

if (preg_match("/^(\d+\.(x-)?\d+\.).*$/", $data['info']['version'], $matches)) {
  // Example matches:
  // * 8.x-1.x-dev, 8.x-1.0-alpha1+5-dev => 8.x-1.x
  // * 8.0.0-dev => 8.0.x (Drupal core)
  $data['info']['version'] = $matches[1] . 'x';
}

Steps performed while reviewing:-
1. Taken clone of issue branch
2. Reviewed locale.compare.inc file as per #25.
3. From line number 59 to 66 is reduced as per issue summary.

Test Result:- Pass.
Moving it to RTBC, because the patch provided in #25 looks good to me.

Please change the status if you find this inappropriate.

Thank You!

Again, the question from #6 still needs answering: is this regex covered by any existing tests?