sumo-bandstats doesn't display correct k-point labels

[utf]

I think this was introduced in PR #169.

Previously output was:

Hole effective masses:
  m_h: -0.641 | band 35 | [0.00, 0.00, 0.00] (\Gamma) -> [0.50, 0.50, 0.50] (L)
  m_h: -0.516 | band 35 | [0.00, 0.00, 0.00] (\Gamma) -> [0.50, 0.00, 0.50] (X)
  m_h: -0.641 | band 36 | [0.00, 0.00, 0.00] (\Gamma) -> [0.50, 0.50, 0.50] (L)
  m_h: -0.516 | band 36 | [0.00, 0.00, 0.00] (\Gamma) -> [0.50, 0.00, 0.50] (X)
  m_h: -1.234 | band 37 | [0.00, 0.00, 0.00] (\Gamma) -> [0.50, 0.50, 0.50] (L)
  m_h: -15.158 | band 37 | [0.00, 0.00, 0.00] (\Gamma) -> [0.50, 0.00, 0.50] (X)

Electron effective masses:
  m_e: 0.207 | band 38 | [0.00, 0.00, 0.00] (\Gamma) -> [0.50, 0.50, 0.50] (L)
  m_e: 0.211 | band 38 | [0.00, 0.00, 0.00] (\Gamma) -> [0.50, 0.00, 0.50] (X)

Most recent output is:

Hole effective masses:
  m_h: -0.641 | band 35 | [0.00, 0.00, 0.00] (\Gamma) -> [0.00, 0.00, 0.00] (\Gamma)
  m_h: -0.516 | band 35 | [0.00, 0.00, 0.00] (\Gamma) -> [0.00, 0.00, 0.00] (\Gamma)
  m_h: -0.641 | band 36 | [0.00, 0.00, 0.00] (\Gamma) -> [0.00, 0.00, 0.00] (\Gamma)
  m_h: -0.516 | band 36 | [0.00, 0.00, 0.00] (\Gamma) -> [0.00, 0.00, 0.00] (\Gamma)
  m_h: -1.234 | band 37 | [0.00, 0.00, 0.00] (\Gamma) -> [0.00, 0.00, 0.00] (\Gamma)
  m_h: -15.158 | band 37 | [0.00, 0.00, 0.00] (\Gamma) -> [0.00, 0.00, 0.00] (\Gamma)

Electron effective masses:
  m_e: 0.207 | band 38 | [0.00, 0.00, 0.00] (\Gamma) -> [0.00, 0.00, 0.00] (\Gamma)
  m_e: 0.211 | band 38 | [0.00, 0.00, 0.00] (\Gamma) -> [0.00, 0.00, 0.00] (\Gamma)

[ajjackson]

How annoying! Doesn't look too hard to track down, at least.