hwdb: quote invalid patterns in error messages

If the pattern is invalid, we don't quite know how it looks, so it's
safer to quote it.

Also simplify the call to sorted().

hwdb.d/parse_hwdb.py

@@ -266,12 +266,12 @@ def check_matches(groups):
         if gr:
             # we check this first to provide an easy error message
             if rest[-1] not in '*:':
-                error('Pattern {} does not end with "*" or ":"', match)
+                error('Pattern {!r} does not end with "*" or ":"', match)
 
             try:
                 gr.parseString(rest)
             except ParseBaseException as e:
-                error('Pattern {} is invalid: {}', match, e)
+                error('Pattern {!r} is invalid: {}', match, e)
                 continue
 
     matches.sort()
@@ -353,12 +353,11 @@ def print_summary(fname, groups):
         error(f'{fname}: no matches or props')
 
 if __name__ == '__main__':
-    args = sys.argv[1:] or sorted(
-        [
-            os.path.dirname(sys.argv[0]) + '/20-dmi-id.hwdb',
-            os.path.dirname(sys.argv[0]) + '/20-net-ifname.hwdb',
-        ] + glob.glob(os.path.dirname(sys.argv[0]) + '/[678][0-9]-*.hwdb')
-    )
+    args = sys.argv[1:] or sorted([
+        os.path.dirname(sys.argv[0]) + '/20-dmi-id.hwdb',
+        os.path.dirname(sys.argv[0]) + '/20-net-ifname.hwdb',
+        *glob.glob(os.path.dirname(sys.argv[0]) + '/[678][0-9]-*.hwdb'),
+    ])
 
     for fname in args:
         groups = parse(fname)