Vector name not displayed correctly if length(vector) > repr.vector.max.items

If
```
options(repr.vector.max.items = 10)
vec = letters
names(vec) = LETTERS
```
Then
```
vec
# A:'a' B:'b' C:'c' D:'d' E:'e' F: ⋯ G:'v' H:'w' I:'x' J:'y' K:'z' 
```
But instead it should be:
```
vec
# A:'a' B:'b' C:'c' D:'d' E:'e' ⋯: ⋯ V:'v' W:'w' X:'x' Y:'y' Z:'z' 
```
