Rollup merge of rust-lang#42385 - Manishearth:its-a-vec, r=steveklabnik

Vec<T> is pronounced 'vec'

I've never heard it pronounced "vector". Is this an outdated recommendation?

(or have I been doing it wrong all this time)

r? @steveklabnik

src/libcollections/vec.rs

@@ -9,7 +9,7 @@
 // except according to those terms.
 
 //! A contiguous growable array type with heap-allocated contents, written
-//! `Vec<T>` but pronounced 'vector.'
+//! `Vec<T>`.
 //!
 //! Vectors have `O(1)` indexing, amortized `O(1)` push (to the end) and
 //! `O(1)` pop (from the end).