wipefs: add comments to code

diff --git a/misc-utils/wipefs.c b/misc-utils/wipefs.c
index 8ac6c33a08e979f3e6bf6b5f726376a8e2b64cab..7ccd3795a4761004bd1cbb9a2addfc3e4446268c 100644 (file)
--- a/misc-utils/wipefs.c
+++ b/misc-utils/wipefs.c
@@ -246,10 +246,13 @@ new_probe(const char *devname, int mode)
                goto error;
 
        blkid_probe_enable_superblocks(pr, 1);
-       blkid_probe_set_superblocks_flags(pr, BLKID_SUBLKS_MAGIC |
-                       BLKID_SUBLKS_TYPE | BLKID_SUBLKS_USAGE |
-                       BLKID_SUBLKS_LABEL | BLKID_SUBLKS_UUID |
-                       BLKID_SUBLKS_BADCSUM);
+       blkid_probe_set_superblocks_flags(pr,
+                       BLKID_SUBLKS_MAGIC |    /* return magic string and offset */
+                       BLKID_SUBLKS_TYPE |     /* return superblock type */
+                       BLKID_SUBLKS_USAGE |    /* return USAGE= */
+                       BLKID_SUBLKS_LABEL |    /* return LABEL= */
+                       BLKID_SUBLKS_UUID |     /* return UUID= */
+                       BLKID_SUBLKS_BADCSUM);  /* accept bad checksums */
 
        blkid_probe_enable_partitions(pr, 1);
        blkid_probe_set_partitions_flags(pr, BLKID_PARTS_MAGIC);