remove decorator space in -z output

[mccanne]

The only space that appears in -z output is between a value and its decorator. We should remove this for consistency (while keeping the space in -Z output). e.g., {a:1(int8)} instead of {a:1 (int8)}.

[philrz]

Verified in Zed commit 1099f2f.

At Zed commit 1924d64 that was right before the changes in the linked PR, this space was present:

$ zq -version
Version: v0.29.0-447-g1924d649

$ echo '{"foo": 1}' | zq -z 'put foo:=int8(foo)' -
{foo:1 (int8)} (=0)

Now on Zed commit 1099f2f, it's gone.

$ zq -version
Version: v0.29.0-460-g1099f2f6

$ echo '{"foo": 1}' | zq -z 'put foo:=int8(foo)' -
{foo:1(int8)}(=0)

As noted above, the space is still present in the -Z output.

$ echo '{"foo": 1}' | zq -Z 'put foo:=int8(foo)' -
{
    foo: 1 (int8)
} (=0)

Thanks @nwt!