Nigeria's Buhari returns home after three-month sick leave in Britain

By Felix OnuahABUJA (Reuters) - Nigerian President Muhammadu Buhari returned home on Saturday from three months of medical leave in Britain where he received treatment for an unspecified ailment.Buhari's leave, which began on May 7 and was his second this year, left many in Nigeria questioning whether he was well enough to run the country.Dressed in a dark kaftan and Muslim prayer hat, the 74-year-old Buhari walked unaided from his plane - holding rails on either side of him - after it landed at