NEW DELHI (Reuters) -The Indian government has ordered a drugmaker whose cough syrup was linked to the deaths of at least six children in Cameroon to stop manufacturing, it said on Tuesday, the fourth Indian company to face a crackdown over tainted medicines. The move comes as Indian regulators step up inspections at drugmakers after cough syrups made in the country were linked to the deaths of dozens of children overseas, denting India's image as the "pharmacy of the world". Riemann Labs, based