How to solve google tag manager code installation error in blogger ?

When you are trying to install the google tag manager code in blogger, you will get the following error message

Error parsing XML, line 10, column 43: The reference to entity "l" must end with the ';' delimiter

Do the following code changes to rectify the error

Original code
j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=

Modified code in red :
replace that line with this line - the change is highlighted in bold

j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=

After editing, save the same. It will get updated without throwing any error

Original reference : https://productforums.google.com/d/msg/tag-manager/Jk9i2AWfDSg/FUeZ9gSv6gIJ