[5.4] php temporary folder message

[jgerman-bot]

New language relevant PR in upstream repo: joomla/joomla-cms#46337 Here are the upstream changes:

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diff --git a/administrator/language/en-GB/com_installer.ini b/administrator/language/en-GB/com_installer.ini
index f93f2d1d4e51..2ff0abf9a68d 100644
--- a/administrator/language/en-GB/com_installer.ini
+++ b/administrator/language/en-GB/com_installer.ini
@@ -192,9 +192,9 @@ COM_INSTALLER_MSG_WARNINGS_MEDMEMORYWARN="Potentially low PHP memory limit."
 COM_INSTALLER_MSG_WARNINGS_NONE="No warnings detected."
 COM_INSTALLER_MSG_WARNINGS_NOTCOMPLETE="<h1>Warning: Update Not Complete!</h1><p>The update is only partially complete. Please do the second update to complete the process.</p>"
 COM_INSTALLER_MSG_WARNINGS_PHPUPLOADNOTSET="The PHP temporary folder is not set."
-COM_INSTALLER_MSG_WARNINGS_PHPUPLOADNOTSETDESC="This folder is the folder that PHP uses to store an uploaded file before Joomla can access this file. Whilst the folder not being set isn't always a problem, if you are having issues with manifest files not being detected or uploaded files not being detected, setting this in your php.ini file might fix the issue."
+COM_INSTALLER_MSG_WARNINGS_PHPUPLOADNOTSETDESC="This folder is the folder that PHP uses to store an uploaded file before Joomla can access this file. Whilst the folder not being set isn't always a problem, if you are having issues with manifest files not being detected or uploaded files not being detected, setting <code>upload_tmp_dir</code> in your php.ini file might fix the issue."
 COM_INSTALLER_MSG_WARNINGS_PHPUPLOADNOTWRITEABLE="The PHP temporary folder is not writeable."
-COM_INSTALLER_MSG_WARNINGS_PHPUPLOADNOTWRITEABLEDESC="This folder is not writeable by the Joomla! instance, which may cause issues when trying to upload extensions to Joomla. If you are having issues uploading extensions, check the '%s' and set it to be writeable and see if this fixes the issue."
+COM_INSTALLER_MSG_WARNINGS_PHPUPLOADNOTWRITEABLEDESC="This folder specified by <code>upload_tmp_dir</code> in your php.ini is not writeable by the Joomla! instance, which may cause issues when trying to upload extensions to Joomla. If you are having issues uploading extensions, check the '%s' and set it to be writeable and see if this fixes the issue."
 COM_INSTALLER_MSG_WARNINGS_SMALLPOSTSIZE="Small PHP maximum POST size."
 COM_INSTALLER_MSG_WARNINGS_SMALLPOSTSIZEDESC="This is the maximum amount of data that can be sent via POST to the server. This includes form submissions for articles, media (images, videos) and extensions. This value is less than 16MB which may impact on uploading large extensions. This is set in the php.ini under post_max_size."
 COM_INSTALLER_MSG_WARNINGS_SMALLUPLOADSIZE="Maximum PHP file upload size is too small."