erc_item.cpp: fix issue that created broken error list in panel setup severities

Fix a minor Coverity warning.

eeschema/erc_item.cpp

@@ -35,7 +35,7 @@ wxString ERC_ITEM::GetErrorText( int aErrorCode ) const
     if( aErrorCode < 0 )
         aErrorCode = m_errorCode;
 
-    switch( m_errorCode )
+    switch( aErrorCode )
     {
     case ERCE_UNSPECIFIED:
         return wxString( _("ERC err unspecified") );

eeschema/sch_painter.cpp

@@ -75,6 +75,7 @@ SCH_RENDER_SETTINGS::SCH_RENDER_SETTINGS() :
         m_ShowDisabled( false ),
         m_ShowUmbilicals( true ),
         m_OverrideItemColors( false ),
+        m_TextOffsetRatio( 0.08 ),
         m_DefaultWireThickness( DEFAULT_WIRE_THICKNESS * IU_PER_MILS ),
         m_DefaultBusThickness( DEFAULT_BUS_THICKNESS * IU_PER_MILS )
 { }