[APPROVED] Tag alias: pecs -> pectorals

tag alias #15918 pecs -> pectorals has been approved.

Reason: Commonly used abbreviation, similar to abs.

EDIT: This tag alias is pending automatic rejection in 5 days.

EDIT: The tag alias pecs -> pectorals (forum #157884) has been approved by @Hillside_Moose.

This tag alias is pending automatic rejection in 5 days.

The tag alias pecs -> pectorals (forum #157884) has been approved by @Hillside_Moose.