Fix tests under colord >= 1.4.3. (Closes: #908900)
The `cd-iccdump` command has no --version command and, whilst the `colord` binary does, it relies on the daemon running to return any output. Therefore we hackily compare the output (via the line length) of colord 1.4.3: " Profile ID = 0477fa4bb5ae5ae9a778f5cd72eb45a4" ... versus, for example, colord 1.3.3: " Profile ID = 0x0477fa4b" We don't massage the output (say, in an `Iccdump.filter` method) as it would remove the accuracy and, unfortunately, colord 1.4.3 also removes a somewhat-arbitrary newline too.
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