spelling: nonexistent

Signed-off-by: Josh Soref <2119212+jsoref@users.noreply.github.com>

src/Network/Probe.php

@@ -2280,7 +2280,7 @@ class Probe
 				]
 			];
 		} catch (Exception $e) {
-			// Default values for non existing targets
+			// Default values for nonexistent targets
 			$data = [
 				'name' => $url, 'nick' => $url, 'url' => $url, 'network' => Protocol::PHANTOM,
 				'photo' => DI::baseUrl() . Contact::DEFAULT_AVATAR_PHOTO

src/Protocol/ActivityPub/Queue.php

@@ -252,7 +252,7 @@ class Queue
 	{
 		$entries = DBA::select('inbox-entry', ['id', 'type', 'object-type', 'object-id', 'in-reply-to-id'], ["`trust` AND `wid` IS NULL"], ['order' => ['id' => true]]);
 		while ($entry = DBA::fetch($entries)) {
-			// Don't process entries of items that are answer to non existing posts
+			// Don't process entries of items that are answer to nonexistent posts
 			if (!empty($entry['in-reply-to-id']) && !Post::exists(['uri' => $entry['in-reply-to-id']])) {
 				continue;
 			}

src/Util/PidFile.php

@@ -31,7 +31,7 @@ class PidFile
 	 *
 	 * @param string $file Filename of pid file
 	 *
-	 * @return boolean|string PID or "false" if not existent
+	 * @return boolean|string PID or "false" if nonexistent
 	 */
 	private static function pidFromFile(string $file)
 	{