loplugin:flatten in helpcompiler

Change-Id: I5d6b83b6976c115426f186958b749e48c60ba8f6
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/91847
Tested-by: Jenkins
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>

helpcompiler/source/HelpLinker.cxx

@@ -104,8 +104,9 @@ void IndexerPreProcessor::processDocument
         xmlFreeDoc(resCaption);
     }
 
-    if( m_xsltStylesheetPtrContent )
-    {
+    if( !m_xsltStylesheetPtrContent )
+        return;
+
     xmlDocPtr resContent = xsltApplyStylesheet( m_xsltStylesheetPtrContent, doc, nullptr );
     xmlNodePtr pResNodeContent = resContent->xmlChildrenNode;
     if( pResNodeContent )
@@ -119,7 +120,6 @@ void IndexerPreProcessor::processDocument
         }
     }
     xmlFreeDoc(resContent);
-    }
 }
 
 namespace {
@@ -462,8 +462,9 @@ void HelpLinker::link()
 
     helpKeyword.dump_DBHelp( keyWordFileName_DBHelp);
 
-    if( !bExtensionMode )
-    {
+    if( bExtensionMode )
+        return;
+
     // New index
     for (auto const& additionalFile : additionalFiles)
     {
@@ -481,7 +482,6 @@ void HelpLinker::link()
 
         fs::copy( fsAdditionalFileName, fsTargetName );
     }
-    }
 }