Minor cleanup for slice::Chunks and ChunksMut#47113

Merged

bors merged 2 commits intorust-lang:masterfrom

sdroege:chunks-size-field

Jan 3, 2018

Commits on Jan 2, 2018

Consistently use chunk_size as the field name for Chunks and ChunksMut
sdroege
committed
Use assert!(chunk_size != 0) instead of > 0 for usize value
sdroege
committed