AFRICAN MIRROR REPORTER THIRTY seven years ago she arrived at the South African Broadcasting Corporation as a typist, yesterday Noxolo Grootboom left as a legendary broadcaster, who even forced the president of the country to change his schedule to fit in with hers. When it became clear that Grootboom's last news bulletin would clash with President Cyril Ramaphosa’s address to the nation, it was not the broadcaster who yielded but the head of state. Ramamposa said:  “We decided to delay the start of this address to the nation by half an hour because a legend of South African broadcasting, Ms…