Fix[1] HTTP Cache-Control headers for static files served by webadmin.

[1] http://www.mnot.net/cache_docs/#CACHE-CONTROL


git-svn-id: https://znc.svn.sourceforge.net/svnroot/znc/trunk@1719 726aef4b-f618-498e-8847-2d620e286838

HTTPSock.cpp

@@ -166,7 +166,7 @@ bool CHTTPSock::PrintFile(const CString& sFileName, CString sContentType) {
 		sETag = "-" + CString(iMTime); // lighttpd style ETag
 
 		AddHeader("ETag", "\"" + sETag + "\"");
-		AddHeader("Cache-Control", "private");
+		AddHeader("Cache-Control", "public");
 
 		if (!m_sIfNoneMatch.empty()) {
 			m_sIfNoneMatch.Trim("\\\"'");