Aliasing shippo → shippou
Link to alias
Reason:
They are alternative spellings of same character's name. Currently, 50 posts use the 'shippo' spelling and 70 posts use the 'shippou' spelling, with some posts (like https://e621.net/post/show/172525 ) using both seperate tags for the same character. Searches for either one of the tags currently result in only some of all of the posts that include (and are tagged for) the character.
Updated by Demesejha