Review 20918

adrian_waters
Issue setting P4MASTER when using ssl

Code was not catering for scenarios where the P4TARGET setting (extracted from the db) included the ssl: prefix, as it stripped everything from the first : onwards (leaving P4MASTER as 'ssl:');  now does this in two parts - firstly to strip off from the last :, and then to strip anything up to the first : (if there is one).

Code in this area was re-worked in previous change, but problem already existed previous releases.
#2: Change 20921 committed into //guest/perforce_software/sdp 2 0 0
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