Attached patch against 2.2_rc33 fixes two common spelling issues: 1) The portage sources use both URI and URL - since some exposed variables use URI, let's settle on that. 2) Sometimes plurals of abbreviations are spelled FOO's, which suggests a possessive of a singular FOO whereas it really is a plural. The patch also corrects some spelling errors I incidentally found reviewing the changes.
Created attachment 194987 [details, diff] portage-2.2_rc33-spell.patch
Thanks, this is in svn r14531.
This is fixed in 2.1.7 and 2.2_rc45.