added hostname to stderr log format
added hostname to stderr log format


Former-commit-id: 637e3483d2443b965262d280eb1cb771a9a41e20 [formerly 1881515f28aa6e9c1b3c76d3c056ef9143dede19]
Former-commit-id: 208c5882edf6fb50e98344b35b70724979f29933
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine