[AF] Update description for expiration date string

The goal is to make more clear to translators that they are supposed to
choose either YY/MM or MM/YY.

Change-Id: I5c84a566ac83e15e59bbca413506035197553c0a
Reviewed-on: https://chromium-review.googlesource.com/1146665
Commit-Queue: Mathieu Perreault <mathp@chromium.org>
Reviewed-by: Mathieu Perreault <mathp@chromium.org>
Cr-Commit-Position: refs/heads/master@{#577210}

components/autofill_strings.grdp

@@ -285,7 +285,7 @@
   <message name="IDS_AUTOFILL_CREDIT_CARD_EXPIRATION_DATE_ABBR" desc="Abbreviated label for credit card expiration date. [CHAR-LIMIT=32]">
     Exp: <ph name="EXPIRATION_MONTH">$1<ex>06</ex></ph>/<ph name="EXPIRATION_YEAR">$2<ex>17</ex></ph>
   </message>
-  <message name="IDS_AUTOFILL_CREDIT_CARD_EXPIRATION_DATE_ABBR_V2" desc="Abbreviated label for credit card expiration date. This will be presented as either YY/MM or MM/YY depending on how credit card expiration dates are more commonly presented in the locale. [CHAR-LIMIT=32]" meaning="Label for credit card expiration date for the save card dialog.">
+  <message name="IDS_AUTOFILL_CREDIT_CARD_EXPIRATION_DATE_ABBR_V2" desc="Abbreviated label for credit card expiration date. Please translate the date as either YY/MM or MM/YY depending on how credit card expiration dates are more commonly presented in your locale. [CHAR-LIMIT=32]" meaning="Label for credit card expiration date for the save card dialog.">
     <ph name="EXPIRATION_MONTH">$1<ex>06</ex></ph>/<ph name="EXPIRATION_YEAR">$2<ex>17</ex></ph>
   </message>