Fix typo

bob/pad/base/script/pad_figure.py

@@ -11,8 +11,7 @@ class Metrics(bio_figure.Metrics):
     '''Compute metrics from score files'''
 
     def __init__(self, ctx, scores, evaluation, func_load,
-                names=('FtA', 'APCER', 'BPCER', 'FAR', 'FRR', 'ACER=(APCER + '
-                       'BPCER) / 2')):
+                names=('FtA', 'APCER', 'BPCER', 'FAR', 'FRR', 'HTER')):
         super(Metrics, self).__init__(
             ctx, scores, evaluation, func_load, names
         )
@@ -47,7 +46,7 @@ class Hist(measure_figure.Hist):
     def _setup_hist(self, neg, pos):
         self._title_base = 'PAD'
         self._density_hist(
-            pos[0], n=0, label='Bona Fide', color='C1'
+            pos[0], n=0, label='Bona fide', color='C1'
         )
         self._density_hist(
             neg[0], n=1, label='Presentation attack', alpha=0.4, color='C7',