Fixes comments

Author: rsarm

cscs-checks/apps/espresso/espresso_check.py

@@ -15,15 +15,11 @@ def __init__(self, variant, **kwargs):
                                        'Espresso')
         self.executable = 'pw.x'
         self.executable_opts = '-in ausurf.in'.split()
-        property_patterns = {
-            'energy': sn.extractsingle(r'!    total energy              ='
-                                       r'\s+(?P<energy>\S+) Ry',
-                                       self.stdout, 'energy', float)
-        }
+        energy = sn.extractsingle(r'!\s+total energy\s+=\s+(?P<energy>\S+) Ry',
+                                  self.stdout, 'energy', float)
         self.sanity_patterns = sn.all([
             sn.assert_found(r'convergence has been achieved', self.stdout),
-            sn.assert_reference(property_patterns['energy'], -11427.08612278,
-                                lower_thres=-1e-10, upper_thres=1e-10)])
+            sn.assert_reference(energy, -11427.08612278, -1e-10, 1e-10)])
         self.perf_patterns = {
             'sec': sn.extractsingle(r'electrons    :\s+(?P<sec>\S+)s CPU ',
                                     self.stdout, 'sec', float)