usb/storage: misc fixes to comments in include/linux/usb/storage.h

The fixes are:
- fix indentation of a comment
- fix a typo in the comment about bulk_cb_wrap.Length
- make comment about US_BULK_CB_SIGN look like the one about
US_BULK_CS_SIGN below
- make the comment about bulk_cs_wrap.Signature look more like the one
about bulk_cb_wrap.Signature

Signed-off-by: Antonio Ospite <[e-mail]>
Cc: Greg Kroah-Hartman <[e-mail]>
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

include/linux/usb/storage.h

···
 
 #define USB_PR_DEVICE	0xff		/* Use device's value */
 
- /*
-  * Bulk only data structures
-  */
+/*
+ * Bulk only data structures
+ */
 
 /* command block wrapper */
 struct bulk_cb_wrap {
···
 	__le32	DataTransferLength;	/* size of data */
 	__u8	Flags;			/* direction in bit 0 */
 	__u8	Lun;			/* LUN normally 0 */
-	__u8	Length;			/* of of the CDB */
+	__u8	Length;			/* length of the CDB */
 	__u8	CDB[16];		/* max command */
 };
 
 #define US_BULK_CB_WRAP_LEN	31
-#define US_BULK_CB_SIGN		0x43425355	/*spells out USBC */
+#define US_BULK_CB_SIGN		0x43425355	/* spells out 'USBC' */
 #define US_BULK_FLAG_IN		(1 << 7)
 #define US_BULK_FLAG_OUT	0
 
 /* command status wrapper */
 struct bulk_cs_wrap {
-	__le32	Signature;	/* should = 'USBS' */
+	__le32	Signature;	/* contains 'USBS' */
 	__u32	Tag;		/* same as original command */
 	__le32	Residue;	/* amount not transferred */
 	__u8	Status;		/* see below */