HPCC-15275 Update link to Boost docs

Signed-off-by: Jim DeFabia <jamesdefabia@lexisnexis.com>

docs/ECLLanguageReference/ECLR_mods/BltInFunc-REGEXFIND.xml

@@ -67,8 +67,9 @@
   expression<indexterm>
       <primary>Perl regular expression</primary>
     </indexterm>. We use third-party libraries to support this, so for
-  non-unicode <emphasis>text</emphasis>, see boost docs at <emphasis
-  role="underline">http://www.boost.org/doc/libs/1_39_0/libs/regex/doc/html/index.html</emphasis>.
+  non-unicode <emphasis>text</emphasis>, see boost docs at <ulink
+  url="http://www.boost.org/doc/libs/1_58_0/libs/regex/doc/html/index.html">http://www.boost.org/doc/libs/1_58_0/libs/regex/doc/html/index.html</ulink>.
+  Note that the version of Boost library may vary depending on your distro.
   For unicode <emphasis>text</emphasis>, see the ICU docs, the sections
   ‘Regular Expression Metacharacters' and ‘Regular Expression Operators' at
   <emphasis

docs/ECLLanguageReference/ECLR_mods/BltInFunc-REGEXFINDSET.xml

@@ -55,8 +55,9 @@
   expression<indexterm>
       <primary>Perl regular expression</primary>
     </indexterm>. We use third-party libraries to support this, so for
-  non-unicode <emphasis>text</emphasis>, see boost docs at <emphasis
-  role="underline">http://www.boost.org/doc/libs/1_39_0/libs/regex/doc/html/index.html</emphasis>.
+  non-unicode <emphasis>text</emphasis>, see boost docs at <ulink
+  url="http://www.boost.org/doc/libs/1_58_0/libs/regex/doc/html/index.html">http://www.boost.org/doc/libs/1_58_0/libs/regex/doc/html/index.html</ulink>.
+  Note that the version of Boost library may vary depending on your distro.
   For unicode <emphasis>text</emphasis>, see the ICU docs, the sections
   ‘Regular Expression Metacharacters' and ‘Regular Expression Operators' at
   <emphasis

docs/ECLLanguageReference/ECLR_mods/BltInFunc-REGEXREPLACE.xml

@@ -65,8 +65,9 @@
   expression<indexterm>
       <primary>Perl regular expression</primary>
     </indexterm>. We use third-party libraries to support this, so for
-  non-unicode <emphasis>text</emphasis>, see boost docs at <emphasis
-  role="underline">http://www.boost.org/doc/libs/1_39_0/libs/regex/doc/html/index.html</emphasis>.
+  non-unicode <emphasis>text</emphasis>, see boost docs at <ulink
+  url="http://www.boost.org/doc/libs/1_58_0/libs/regex/doc/html/index.html">http://www.boost.org/doc/libs/1_58_0/libs/regex/doc/html/index.html</ulink>.
+  Note that the version of Boost library may vary depending on your distro.
   For unicode <emphasis>text</emphasis>, see the ICU docs, the sections
   ‘Regular Expression Metacharacters' and ‘Regular Expression Operators' at
   <emphasis
@@ -110,5 +111,6 @@ Sea Sea fea Drei Dr\xc3\xabi Dr\xc3\xabi
 Shells Shellf fhellf Vier Vi\xc3\xabr Vi\xc3\xabr */
 </programlisting>
 
-  <para>See Also: <link linkend="PARSE">PARSE</link>, <link linkend="REGEXFIND">REGEXFIND</link></para>
+  <para>See Also: <link linkend="PARSE">PARSE</link>, <link
+  linkend="REGEXFIND">REGEXFIND</link></para>
 </sect1>