libzfs_sendrecv: Fix some comment style nits

* Capitalize and punctuate complete sentences.
* Add a blank line between functions.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ryan Moeller <freqlabs@FreeBSD.org>
Closes #12967

diff --git a/lib/libzfs/libzfs_sendrecv.c b/lib/libzfs/libzfs_sendrecv.c
index f96f1aa9332ad1e909a09f884122439a787bef0c..e034b437899168ad3cf0296faf5dd21b1d4ad762 100644 (file)
--- a/lib/libzfs/libzfs_sendrecv.c
+++ b/lib/libzfs/libzfs_sendrecv.c
@@ -1402,7 +1402,7 @@ zfs_send_resume_token_to_nvlist(libzfs_handle_t *hdl, const char *token)
                return (NULL);
        }
 
-       /* convert hexadecimal representation to binary */
+       /* Convert hexadecimal representation to binary. */
        token = strrchr(token, '-') + 1;
        int len = strlen(token) / 2;
        unsigned char *compressed = zfs_alloc(hdl, len);
@@ -1417,7 +1417,7 @@ zfs_send_resume_token_to_nvlist(libzfs_handle_t *hdl, const char *token)
                }
        }
 
-       /* verify checksum */
+       /* Verify checksum. */
        zio_cksum_t cksum;
        fletcher_4_native_varsize(compressed, len, &cksum);
        if (cksum.zc_word[0] != checksum) {
@@ -1427,7 +1427,7 @@ zfs_send_resume_token_to_nvlist(libzfs_handle_t *hdl, const char *token)
                return (NULL);
        }
 
-       /* uncompress */
+       /* Uncompress. */
        void *packed = zfs_alloc(hdl, packed_len);
        uLongf packed_len_long = packed_len;
        if (uncompress(packed, &packed_len_long, compressed, len) != Z_OK ||
@@ -1439,7 +1439,7 @@ zfs_send_resume_token_to_nvlist(libzfs_handle_t *hdl, const char *token)
                return (NULL);
        }
 
-       /* unpack nvlist */
+       /* Unpack nvlist. */
        nvlist_t *nv;
        int error = nvlist_unpack(packed, packed_len, &nv, KM_SLEEP);
        free(packed);
@@ -1451,6 +1451,7 @@ zfs_send_resume_token_to_nvlist(libzfs_handle_t *hdl, const char *token)
        }
        return (nv);
 }
+
 static enum lzc_send_flags
 lzc_flags_from_sendflags(const sendflags_t *flags)
 {