re-word warnings to be clearer to user

diff --git a/lib/device/dev-cache.c b/lib/device/dev-cache.c
index ce727baaa7ef3c5b787ccacb90eb5fcff1ad521e..29a619c7d5fcf8564a660892c2c864c6fae2ee3a 100644 (file)
--- a/lib/device/dev-cache.c
+++ b/lib/device/dev-cache.c
@@ -510,18 +510,18 @@ static int _insert_udev_dir(struct udev *udev, const char *dir)
 
        udev_list_entry_foreach(device_entry, udev_enumerate_get_list_entry(udev_enum)) {
                if (!(device = udev_device_new_from_syspath(udev, udev_list_entry_get_name(device_entry)))) {
-                       log_warn("Udev returns NULL device.");
+                       log_warn("WARNING: udev failed to return a device entry.");
                        continue;
                }
 
                if (!(node_name = udev_device_get_devnode(device)))
-                       log_warn("Udev returns NULL devnode.");
+                       log_warn("WARNING: udev failed to return a device node.");
                else
                        r &= _insert(node_name, 0, 0);
 
                udev_list_entry_foreach(symlink_entry, udev_device_get_devlinks_list_entry(device)) {
                        if (!(symlink_name = udev_list_entry_get_name(symlink_entry)))
-                               log_warn("Udev returns NULL name.");
+                               log_warn("WARNING: udev failed to return a symlink name.");
                        else
                                r &= _insert(symlink_name, 0, 0);
                }