Using valgrind r10990 with --trace-children=yes, I noticed that sometimes
the environment variables in the client app were
not all there.  I managed to track it down a
bit - in coregrind/m_initimg/initimg-linux.c, on entry to
setup_client_env(), on about the fourth time through,
there was an empty environment variable (no name,
no =, no value) inserted after LD_PRELOAD=, i.e.
      "LD_PRELOAD="
      ""
      "XAUTHORITY=/home/dank/.Xauthority"

Could the LD_PRELOAD munging in that file have
misbehaved somehow?
- Dan

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