hs_err improvement: align the output of Virtual space metadata

This is on behalf of junjiwang@tencent.com

In the "virtual space" section of the VM error log, the "Both" line doesn't align well will the above two lines - there is a redundant leading space in this line.

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Metaspace:

Usage:
  Non-class: 216.95 KB used.
      Class: 10.45 KB used.
       Both: 227.40 KB used.

Virtual space:
  Non-class space: 8.00 MB reserved, 320.00 KB ( 4%) committed, 1 nodes.
      Class space: 1.00 GB reserved, 128.00 KB ( <1%) committed, 1 nodes.
              Both: 1.01 GB reserved, 448.00 KB ( <1%) committed. <---- Not aligned here
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