(AzureCXP) fixes MicrosoftDocs/azure-docs#111626

Updated line number 119.

From "sudo partprobe /dev/sdc1"

To "sudo partprobe /dev/sdc"

Author: SaibabaBalapur-MSFT

articles/virtual-machines/linux/attach-disk-portal.md

@@ -116,7 +116,7 @@ The following example uses `parted` on `/dev/sdc`, which is where the first data
 
 ```bash
 sudo parted /dev/sdc --script mklabel gpt mkpart xfspart xfs 0% 100%
-sudo mkfs.xfs /dev/sdc1
+sudo mkfs.xfs /dev/sdc
 sudo partprobe /dev/sdc1
 ```