Correct error msg

Signed-off-by: Somtochi Onyekwere <somtochionyekwere@gmail.com>

pkg/azure/blob_integration_test.go

@@ -281,11 +281,11 @@ func TestBlobClientContainerSASKey_BucketExists(t *testing.T) {
 	g.Expect(err).ToNot(HaveOccurred())
 	g.Expect(ok).To(BeTrue())
 
-	// BucketExists returns a good error message if the bucket doesn't exist with container level SAS
+	// BucketExists returns an error if the bucket doesn't exist with container level SAS
 	// since the error code is AuthenticationFailed.
 	ok, err = sasKeyClient.BucketExists(ctx, "non-existent")
 	g.Expect(err).To(HaveOccurred())
-	g.Expect(err.Error()).To(ContainSubstring("Bucket might not exist"))
+	g.Expect(err.Error()).To(ContainSubstring("Bucket name may be incorrect, it does not exist"))
 	g.Expect(ok).To(BeFalse())
 }