storage blob upload from string incorrect

[jeremymeng]

AzureStorageSnippets/blobs/howto/TypeScript/NodeJS-v12/dev-guide/src/blob-upload-from-string.ts

Line 24 in 264023a

await blockBlobClient.upload(fileContents, fileContents.length);

AzureStorageSnippets/blobs/howto/TypeScript/NodeJS-v12/dev-guide/src/blob-upload-from-string-with-access-tier.ts

Line 38 in 264023a

fileContentsAsString.length,

we should not pass string length to blobClient.upload(). The methods take byte length, not string length which can be different and could leads to data corruption.