corr y08 output

pub/src/scan.cpp

@@ -56,7 +56,7 @@ void CScan::Save( FILE *fd, string fmt ) const
 {
     if( fmt=="y08" ){
 	for ( size_t i=0; i<z.size(); i++ ) 
-            fprintf( fd, "    %zu: %18.10g\n", i, z[i] );
+            fprintf( fd, "    z%zu: %18.10g\n", i, z[i] );
 	fprintf( fd, "    xy: |2 # %zu entries\n", size() );
         for( size_t i=0; i<size(); i++ ) 
             fprintf( fd, "      %20.15g %20.15g\n", x[i], y[i] );