sd-dhcp: library code shouldn't log above LOG_DEBUG (#6001)

Let's downgrade the warning introduced by
955d99edc7991386a36e3d33924cc584931fde91 to debug, as we really
shouldn't log at more than debug level from library code.

(And while we are at it, print the MTU as the right (unsigned) type in
the format string.)

diff --git a/src/libsystemd-network/sd-dhcp-lease.c b/src/libsystemd-network/sd-dhcp-lease.c
index b4552aa..1661874 100644 (file)
--- a/src/libsystemd-network/sd-dhcp-lease.c
+++ b/src/libsystemd-network/sd-dhcp-lease.c
@@ -611,7 +611,7 @@ int dhcp_lease_parse_options(uint8_t code, uint8_t len, const void *option, void
                 if (r < 0)
                         log_debug_errno(r, "Failed to parse MTU, ignoring: %m");
                 if (lease->mtu < DHCP_DEFAULT_MIN_SIZE) {
-                        log_warning("MTU value of %d too small. Using default MTU value of %d instead.", lease->mtu, DHCP_DEFAULT_MIN_SIZE);
+                        log_debug("MTU value of %" PRIu16 " too small. Using default MTU value of %d instead.", lease->mtu, DHCP_DEFAULT_MIN_SIZE);
                         lease->mtu = DHCP_DEFAULT_MIN_SIZE;
                 }