MSI: fix MsiEnumComponentQualifiers again

[Mike McCormack]

ChangeLog:
Loop around calling RegQueryValue until we have a big enough string for
both the name and the value.

  dlls/msi/registry.c |   75 
+++++++++++++++++++++++++++++++--------------------
  1 files changed, 46 insertions(+), 29 deletions(-)

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