p4raw-id: //depot/perl@7588
=item Can't find %s property definition %s
-(F) You may have tried to use \p which means a Unicode property
-for example \p{Lu} is all uppercase letters.
+(F) You may have tried to use C<\p> which means a Unicode property for
+example \p{Lu} is all uppercase letters. Escape the C<\p>, either
+C<\\p> (just the C<\p>) or by C<\Q\p> (the rest of the string, until
+possible C<\E>).
=item Can't fork