[Utility] Ignore write failures (SE-0047).
[Utility] Ignore write failures (SE-0047).

 - It would be nice to throw, but we can't do that and reuse OutputStream.

JGiola/swift-package-manager,apple/swift-package-manager,vmanot/swift-package-manager,JGiola/swift-package-manager,vmanot/swift-package-manager,haskellswift/swift-package-manager,mxcl/swift-package-manager,JGiola/swift-package-manager,haskellswift/swift-package-manager,abertelrud/swift-package-manager,sschiau/swift-package-manager,mxcl/swift-package-manager,JGiola/swift-package-manager,abertelrud/swift-package-manager,sschiau/swift-package-manager,mxcl/swift-package-manager,abertelrud/swift-package-manager,sschiau/swift-package-manager,sschiau/swift-package-manager,apple/swift-package-manager,vmanot/swift-package-manager,vmanot/swift-package-manager,mxcl/swift-package-manager,sschiau/swift-package-manager,abertelrud/swift-package-manager,apple/swift-package-manager,JGiola/swift-package-manager,haskellswift/swift-package-manager,apple/swift-package-manager,haskellswift/swift-package-manager,apple/swift-package-manager,abertelrud/swift-package-manager,vmanot/swift-package-manager