Update add printer error strings

Updates the error string shown when adding a printer fails for a
non-descript reson.

Bug: 1011586
Change-Id: I89ef561ad96b60020c0e04cc492bdd5fda738f3b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1874592
Auto-Submit: Bailey Berro <baileyberro@chromium.org>
Reviewed-by: Steven Bennetts <stevenjb@chromium.org>
Commit-Queue: Bailey Berro <baileyberro@chromium.org>
Cr-Commit-Position: refs/heads/master@{#708634}

chrome/app/settings_strings.grdp

@@ -1635,10 +1635,10 @@
       Searching...
     </message>
     <message name="IDS_SETTINGS_PRINTING_CUPS_PRINTER_ADDED_PRINTER_ERROR_MESSAGE" desc="The message shown when a new printer is not set up successfully.">
-      Can&#x2019;t add printer. Restart your computer and try again.
+      Unable to add printer. Please check your printer's configuration and try again.
     </message>
     <message name="IDS_SETTINGS_PRINTING_CUPS_PRINTER_ADDED_PRINTER_FATAL_ERROR_MESSAGE" desc="The message shown when a fatal error occurs while trying to add a new printer.">
-      Can&#x2019;t add printer. Restart your computer and try again.
+      Unable to add printer. Please check your printer's configuration and try again.
     </message>
     <message name="IDS_SETTINGS_PRINTING_CUPS_PRINTER_ADDED_PRINTER_PRINTER_UNREACHABLE_MESSAGE" desc="The message shown when the printer that is to be added is unreachable for configuration.">
       Can&#x2019;t connect to printer. Check that the printer is turned on and is connected to your Chromebook by Wi-Fi or USB.