server-tools/instance-manager/IMService.cpp:
  coding style fixes: tabs, trailing spaces, offset e.t.c
server-tools/instance-manager/WindowsService.cpp:
  coding style fixes: tabs, trailing spaces, offset e.t.c
server-tools/instance-manager/WindowsService.h:
  coding style fixes: tabs, trailing spaces, offset e.t.c
server-tools/instance-manager/instance.cc:
  cleanup & coding style fixes: tabs, trailing spaces, offset e.t.c
server-tools/instance-manager/listener.cc:
  coding style fixes: tabs, trailing spaces, offset e.t.c
server-tools/instance-manager/manager.cc:
  coding style fixes: tabs, trailing spaces, offset e.t.c
server-tools/instance-manager/options.cc:
  coding style fixes: tabs, trailing spaces, offset e.t.c
server-tools/instance-manager/user_map.cc:
  simplify password file processing