Improve Javadoc for all implementations of AbstractOriginSupplier#get()

Author: garydgregory

src/changes/changes.xml

@@ -54,6 +54,7 @@ The <action> type attribute can be add,update,fix,remove.
       <action dev="ggregory" type="fix"                due-to="Gary Gregory">Remove -nouses directive from maven-bundle-plugin. OSGi package imports now state 'uses' definitions for package imports, this doesn't affect JPMS (from org.apache.commons:commons-parent:80).</action>
       <action dev="ggregory" type="fix"                due-to="Gary Gregory">Deprecate DeferredFileOutputStream.getStream() in favor of getOutputStream().</action>
       <action dev="ggregory" type="fix" issue="IO-868" due-to="Julian Reschke, Gary Gregory">Improve Javadoc for a BoundedInputStream builder() throwing IOException.</action>
+      <action dev="ggregory" type="fix" issue="IO-868" due-to="Julian Reschke, Gary Gregory">Improve Javadoc for all implementations of AbstractOriginSupplier#get().</action>
       <!-- ADD -->
       <action dev="ggregory" type="add" issue="IO-860" due-to="Nico Strecker, Gary Gregory">Add ThrottledInputStream.Builder.setMaxBytes(long, ChronoUnit).</action>
       <action dev="ggregory" type="add"                due-to="Gary Gregory">Add IOIterable.</action>