[SE-0301] Revise based on review feedback (#1274)
[SE-0301] Revise based on review feedback (#1274)

1. Use space separated arguments instead of commas
2. Support the full range of dependency version requirements
apple/swift-evolution,abertelrud/swift-evolution,apple/swift-evolution,natecook1000/swift-evolution,abertelrud/swift-evolution,natecook1000/swift-evolution