fix comment
diff --git a/src/core/ngx_cycle.c b/src/core/ngx_cycle.c
index fbfc9c6..17673d0 100644
--- a/src/core/ngx_cycle.c
+++ b/src/core/ngx_cycle.c
@@ -698,8 +698,8 @@
if (ngx_process == NGX_PROCESS_MASTER || ngx_is_init_cycle(old_cycle)) {
/*
- * perl_destruct() frees environ if it is not the same as it was at
- * perl_construct() time. So we have saved an previous cycle
+ * perl_destruct() frees environ, if it is not the same as it was at
+ * perl_construct() time, therefore we save the previous cycle
* environment before ngx_conf_parse() where it will be changed.
*/
