Merge pull request #663 from ndw/iss-662

Fix p:choose/p:try wrt 'exactly' and primary output ports

xproc/src/main/xml/specification.xml

@@ -4030,8 +4030,8 @@ are union of all of the outputs declared in any of its alternative
 subpipelines. In order to maintain consistency with respect to the
 <glossterm>default readable port</glossterm>, if any subpipeline has a
 <glossterm>primary output port</glossterm>, even implicitly, then
-<emphasis>every</emphasis> subpipline must have exactly the same
-primary output port. In some cases, this may require making the implicit
+<emphasis>every</emphasis> subpipline must have a primary output
+port with the same name. In some cases, this may require making the implicit
 primary output explicit in order to assure that it has the same name.
 <error code="S0102">It is a <glossterm>static error</glossterm> if alternative
 subpipelines have different primary output ports.</error>
@@ -4211,8 +4211,8 @@ has a primary output port) in any of its alternative
 subpipelines. In order to maintain consistency with respect to the
 <glossterm>default readable port</glossterm>, if any subpipeline has a
 <glossterm>primary output port</glossterm>, even implicitly, then
-<emphasis>every</emphasis> subpipline must have exactly the same
-primary output port. In some cases, this may require making the implicit
+<emphasis>every</emphasis> subpipline must have a primary output
+port with the same name. In some cases, this may require making the implicit
 primary output explicit in order to assure that it has the same name.
 <error code="S0102">It is a <glossterm>static error</glossterm> if alternative
 subpipelines have different primary output ports.</error>