BUG: Fix version comparison in macports_fastload.tcl

[sfiera@…]

This is to reiterate a point I made to the developer list: macports_fastload performs an erroneous version comparison due to a list index being out-of-bounds. There happens to be an easier way of doing this version comparison in package vcompare (like rpm-vercomp, but it only deals with integral components). An attached diff would make this change.

Note: previous versions of Tcl did not necessarily return the full version string in info patchlevel so I verify that the version is a valid version string (\d+\.\d+\.\d+) first.

Also note: I had commented about the catch statements in my mail to -dev as well; having gained a greater understanding of what these statements are doing, I still don't feel they're necessary, though I no longer see a particular reason to remove them.

[kballard (Lily Ballard)]

Ok, committed in r27127

[jmpalacios (Juan Manuel Palacios)]

Milestone Needs developer review deleted

[tobypeterson]

Milestone MacPorts base bugs deleted