in Coverage menu in Google Search Console i take a error for register page (http://linux-zone.org/forums/register) with title "Submitted URL marked ‘noindex’"

i searched about this error and understand, i must added "nofollow and noindex" command to this page with bellow code :
my question is how i can added above code, in register page for solved problem?
i searched about this error and understand, i must added "nofollow and noindex" command to this page with bellow code :
PHP Code:
<meta name=”robots” content=”noindex, nofollow” />
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