--- tools/libxl/libxlu_disk_l.c.orig	2019-12-17 14:23:09 UTC
+++ tools/libxl/libxlu_disk_l.c
@@ -1250,11 +1250,11 @@ YY_DECL
 		YY_USER_INIT;
 #endif
 
-        /* Create the reject buffer large enough to save one state per allowed character. */
-        if ( ! yyg->yy_state_buf )
-            yyg->yy_state_buf = (yy_state_type *)xlu__disk_yyalloc(YY_STATE_BUF_SIZE  ,yyscanner);
-            if ( ! yyg->yy_state_buf )
-                YY_FATAL_ERROR( "out of dynamic memory in xlu__disk_yylex()" );
+		/* Create the reject buffer large enough to save one state per allowed character. */
+		if ( ! yyg->yy_state_buf )
+			yyg->yy_state_buf = (yy_state_type *)xlu__disk_yyalloc(YY_STATE_BUF_SIZE  ,yyscanner);
+		if ( ! yyg->yy_state_buf )
+			YY_FATAL_ERROR( "out of dynamic memory in xlu__disk_yylex()" );
 
 		if ( ! yyg->yy_start )
 			yyg->yy_start = 1;	/* first start state */