Fix grammatical error in host overload message.

remoting/resources/remoting_strings.grd

Index: remoting/resources/remoting_strings.grd
diff --git a/remoting/resources/remoting_strings.grd b/remoting/resources/remoting_strings.grd
index cca1b766c219dcecffa694d5e82336ee27a25c23..7979bc939d379f4ffb9a6927bbfae504d5250a55 100644
--- a/remoting/resources/remoting_strings.grd
+++ b/remoting/resources/remoting_strings.grd
@@ -740,7 +740,7 @@ For information about privacy, please see the Google Privacy Policy (http://goo.
         Duration
       </message>
       <message desc="Error that is shown on the client side when the host is blocking all connections due to failed authentication attempts." name="IDS_ERROR_HOST_OVERLOAD" formatter_data="android_java">
-        Connections to the remote computer are temporarily blocked because somebody was trying to connect to it with invalid PIN. Please try again later.
+        Connections to the remote computer are temporarily blocked because somebody was trying to connect to it with an invalid PIN. Please try again later.
       </message>
       <message desc="Error that is shown on the client side after the host has terminated connection that lasted more than maximum allowed duration." name="IDS_ERROR_MAX_SESSION_LENGTH" formatter_data="android_java">
         The remote session has expired.