Merge pull request #7285 from JamesDeFabia/13513Const_StringLinkend

HPCC-13513 Fix broken hyperlink in doc

Reviewed-By: Greg Panagiotatos <Greg.Panagiotatos@lexisnexis.com>
Reviewed-By: Richard Chapman <rchapman@hpccsystems.com>

docs/ECLLanguageReference/ECLR_mods/Value-String.xml

@@ -40,6 +40,6 @@ EBCDIC STRING3 MyString2 := x'616263';
 
   <para>See Also: <link linkend="LENGTH">LENGTH</link>, <link
   linkend="TRIM">TRIM</link>, <link linkend="Set_Ordering_and_Indexing">Set
-  Ordering and Indexing</link>, <link linkend="String">Hexadecimal
+  Ordering and Indexing</link>, <link linkend="Const_String">Hexadecimal
   String</link></para>
 </sect1>