msiexec: msiexec also supports options using a hyphen [try2]

[James Hawkins]

Hi,

Besides the compare changes, this is mostly a no-op, just had to move
parts of the code into the if clause.

Changelog:
* msiexec also supports options using a hyphen.

 programs/msiexec/msiexec.c |  589 ++++++++++++++++++++++----------------------
 1 files changed, 296 insertions(+), 293 deletions(-)

--
James Hawkins
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