Empty Trash Task helper grammar is off

While reviewing https://issues.sonatype.org/browse/NEXUS-7705, I noticed that on an Empty Trash tasks the repository field had the helper text "Select the repository to empty the trash.".
This read grammatically weird to me so I checked with jwayman and simpligility and they suggested:

• Select the repository whose trash will be emptied
• Select the repository trash to be emptied
• The trash for the selected repository (below) will be emptied

Note, they had periods at the ends of some of their suggestions (as does the original text) but I removed them per the Design principles document attached with NEXUS-7705.

This is an NX3 issue only; NX2 does not have any helper text (which could be another solution).