fixing comment

libwccl/ops/tolower.h

@@ -29,7 +29,7 @@ public:
 
 	/**
 	 * String representation of conditional operator in form of:
-	 * "if cond_expr_raw_s then iftrue_expr_raw_s else iffalse_expr_raw_s"
+	 * "lower(strset_expr_raw_string)"
 	 * This version does not require tagset, but may be inclomplete
 	 * and/or contain internal info.
 	 */