Simplify error message

- Fixes #435

resources/language/resource.language.en_gb/strings.po

@@ -1428,12 +1428,9 @@ msgctxt "#39030"
 msgid "Add network credentials to allow Kodi access to your content? Note: Skipping this step may generate a message during the initial scan of your content if Kodi can't locate your content."
 msgstr ""
 
+# Error message displayed when verifying Direct Path sync paths passed by Plex
 msgctxt "#39031"
-msgid "Kodi can't locate file: "
-msgstr ""
-
-msgctxt "#39032"
-msgid "Please verify the path. You may need to verify your network credentials in the add-on settings or use different Plex paths. Stop syncing?"
+msgid "Kodi cannot locate the file %s. Please verify your PKC settings. Stop syncing?"
 msgstr ""
 
 msgctxt "#39033"

resources/lib/PlexAPI.py

@@ -1540,10 +1540,9 @@ class API(object):
         Returns True if sync should stop, else False
         """
         LOG.warn('Cannot access file: %s', url)
-        resp = dialog('yesno',
-                      heading=lang(29999),
-                      line1=lang(39031) + url,
-                      line2=lang(39032))
+        # Kodi cannot locate the file #s. Please verify your PKC settings. Stop
+        # syncing?
+        resp = dialog('yesno', heading='{plex}', line1=lang(39031) % url)
         return resp
 
     def set_listitem_artwork(self, listitem):