coverity#1417678 Uncaught exception

Change-Id: I93540f308b0ea20358925609f11d0f72a13cbd3f
Reviewed-on: https://gerrit.libreoffice.org/48789Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>

sw/inc/dbmgr.hxx

@@ -291,7 +291,7 @@ class SW_DLLPUBLIC SwDBManager
 
 public:
     SwDBManager(SwDoc* pDoc);
-    ~SwDBManager();
+    ~SwDBManager() COVERITY_NOEXCEPT_FALSE;
 
     /// MailMergeEvent source
     const SwXMailMerge *    GetMailMergeEvtSrc() const  { return pMergeEvtSrc; }

sw/source/uibase/dbui/dbmgr.cxx

@@ -801,7 +801,7 @@ SwDBManager::SwDBManager(SwDoc* pDoc)
 {
 }
 
-SwDBManager::~SwDBManager()
+SwDBManager::~SwDBManager() COVERITY_NOEXCEPT_FALSE
 {
     RevokeLastRegistrations();