enable InheritsCheck by default

Author: mgorny

NEWS.rst

@@ -3,13 +3,15 @@ Release Notes
 =============
 
 ---------------------------
-pkgcheck 0.10.6 (2021-??-??)
+pkgcheck 0.10.6 (2021-09-02)
 ---------------------------
 
 - add a check for calling EXPORT_FUNCTIONS before further inherits.
 
 - InheritsCheck: process @PROVIDES recursively.
 
+- InheritsCheck: enable by default.
+
 ----------------------------
 pkgcheck 0.10.5 (2021-08-16)
 ----------------------------

src/pkgcheck/checks/codingstyle.py

@@ -10,7 +10,7 @@
 
 from .. import addons, bash
 from .. import results, sources
-from . import Check, OptionalCheck
+from . import Check
 
 PREFIX_VARIABLES = ('EROOT', 'ED', 'EPREFIX')
 PATH_VARIABLES = ('BROOT', 'ROOT', 'D') + PREFIX_VARIABLES
@@ -577,7 +577,7 @@ def desc(self):
         return f'{self.eclass}: internal usage: {repr(self.usage)}, line {self.lineno}'
 
 
-class InheritsCheck(OptionalCheck):
+class InheritsCheck(Check):
     """Scan for ebuilds with missing or unused eclass inherits.
 
     Note that this requires using ``pmaint regen`` to generate repo metadata in