Fix for Bug 3603434.
[Bug 3603434] Make sure TclpObjNormalizePath() properly declares "a:/" to
be normalized, even when no "A:" drive is present on the system.
[Bug 3603434] Make sure TclpObjNormalizePath() properly declares "a:/" to
be normalized, even when no "A:" drive is present on the system.
[Bug 3603434] Make sure TclpObjNormalizePath() properly declares "a:/" to
be normalized, even when no "A:" drive is present on the system.