lib: Clarify restrict_access_allow_coredumps

src/lib/restrict-access.h

@@ -51,8 +51,10 @@ void restrict_access_by_env(const char *home, bool disallow_root) ATTR_NULL(1);
    otherwise NULL. */
 const char *restrict_access_get_current_chroot(void);
 
-/* Try to set up the process in a way that core dumps are still allowed
-   after calling restrict_access_by_env(). */
+/*
+   Checks if PR_SET_DUMPABLE environment variable is set, and if it is,
+   calls restrict_access_set_dumpable(allow). 
+*/
 void restrict_access_allow_coredumps(bool allow);
 
 /* If privileged_gid was set, these functions can be used to temporarily