python: Simplify list sorting

Instead of copying the list, then sorting the copy in-place, we can just
get a new sorted copy directly.

Signed-off-by: Mathieu Bridon <bochecha@daitauha.fr>
Reviewed-by: Eric Engestrom <eric.engestrom@intel.com>
Reviewed-by: Dylan Baker <dylan@pnwbakers.com>

src/mapi/mapi_abi.py

@@ -291,8 +291,7 @@ class ABIPrinter(object):
         self.entries = entries
 
         # sort entries by their names
-        self.entries_sorted_by_names = self.entries[:]
-        self.entries_sorted_by_names.sort(key=attrgetter('name'))
+        self.entries_sorted_by_names = sorted(self.entries, key=attrgetter('name'))
 
         self.indent = ' ' * 3
         self.noop_warn = 'noop_warn'
@@ -441,8 +440,7 @@ class ABIPrinter(object):
     def c_stub_string_pool(self):
         """Return the string pool for use by stubs."""
         # sort entries by their names
-        sorted_entries = self.entries[:]
-        sorted_entries.sort(key=attrgetter('name'))
+        sorted_entries = sorted(self.entries, key=attrgetter('name'))
 
         pool = []
         offsets = {}