Replace chained O(U)StringBuffer::append() with operator+

	modified:   basctl/source/basicide/basides2.cxx

Change-Id: I681188553058ac8712365bc2de39b0453fd19ed9
Reviewed-on: https://gerrit.libreoffice.org/3546Reviewed-by: Thomas Arnhold <thomas@arnhold.org>
Tested-by: Thomas Arnhold <thomas@arnhold.org>
Reviewed-by: Fridrich Strba <fridrich@documentfoundation.org>
Tested-by: Fridrich Strba <fridrich@documentfoundation.org>

basctl/source/basicide/basides2.cxx

@@ -111,19 +111,15 @@ void Shell::SetMDITitle()
     if ( !m_aCurLibName.isEmpty() )
     {
         LibraryLocation eLocation = m_aCurDocument.getLibraryLocation( m_aCurLibName );
-        aTitleBuf.append(m_aCurDocument.getTitle(eLocation));
-        aTitleBuf.append('.');
-        aTitleBuf.append(m_aCurLibName);
+        aTitleBuf = m_aCurDocument.getTitle(eLocation) + "." + m_aCurLibName ;
     }
     else
-        aTitleBuf.append(IDE_RESSTR(RID_STR_ALL));
+        aTitleBuf = IDE_RESSTR(RID_STR_ALL) ;
 
     DocumentSignature aCurSignature( m_aCurDocument );
     if ( aCurSignature.getScriptingSignatureState() == SIGNATURESTATE_SIGNATURES_OK )
     {
-        aTitleBuf.append(' ');
-        aTitleBuf.append(IDE_RESSTR(RID_STR_SIGNED));
-        aTitleBuf.append(' ');
+        aTitleBuf = aTitleBuf + " " + IDE_RESSTR(RID_STR_SIGNED) + " ";
     }
     OUString aTitle(aTitleBuf.makeStringAndClear());