fix html tests

after 73e3aafa990168aa532fa7b81fc4de8f455b10e1 we need to lowercase all
html tags.

Change-Id: Ied686e153666f79c2a866473eeb393ec4e5bb961
diff --git a/svtools/source/svhtml/parhtml.cxx b/svtools/source/svhtml/parhtml.cxx
index a6717d5..474fd20 100644
--- a/svtools/source/svhtml/parhtml.cxx
+++ b/svtools/source/svhtml/parhtml.cxx
@@ -886,7 +886,7 @@ int HTMLParser::_GetNextRawToken()
                }

                OUString aTok( sTmpBuffer.toString() );
                aTok = aTok.toAsciiUpperCase();
                aTok = aTok.toAsciiLowerCase();
                bool bDone = false;
                if( bReadScript || !aEndToken.isEmpty() )
                {
@@ -1132,7 +1132,7 @@ int HTMLParser::_GetNextToken()

                    // Search token in table:
                    sSaveToken = aToken;
                    aToken = aToken.toAsciiUpperCase();
                    aToken = aToken.toAsciiLowerCase();
                    if( 0 == (nRet = GetHTMLToken( aToken )) )
                        // Unknown control
                        nRet = HTML_UNKNOWNCONTROL_ON;
@@ -1930,7 +1930,7 @@ bool HTMLParser::IsHTMLFormat( const sal_Char* pHeader,
        sCmp = pHeader;
    }

    sCmp = sCmp.toAsciiUpperCase();
    sCmp = sCmp.toAsciiLowerCase();

    // A HTML document must have a '<' in the first line
    sal_Int32 nStart = sCmp.indexOf('<');