flake8: remove some redundant separators

mesonbuild/compilers/detect.py

@@ -392,7 +392,7 @@ def _detect_c_or_cpp_compiler(env: 'Environment', lang: str, for_machine: Machin
                 watcom_cls = [sanitize(os.path.join(os.environ['WATCOM'], 'BINNT', 'cl')),
                               sanitize(os.path.join(os.environ['WATCOM'], 'BINNT', 'cl.exe')),
                               sanitize(os.path.join(os.environ['WATCOM'], 'BINNT64', 'cl')),
-                              sanitize(os.path.join(os.environ['WATCOM'], 'BINNT64', 'cl.exe')),]
+                              sanitize(os.path.join(os.environ['WATCOM'], 'BINNT64', 'cl.exe'))]
                 found_cl = sanitize(shutil.which('cl'))
                 if found_cl in watcom_cls:
                     mlog.debug('Skipping unsupported cl.exe clone at:', found_cl)

mesonbuild/interpreter/interpreter.py

@@ -1706,7 +1706,7 @@ external dependencies (including libraries) must go to "dependencies".''')
             kwargs['output'][0],
             self.subdir,
             self.subproject,
-            self.environment.get_build_command() + \
+            self.environment.get_build_command() +
                 ['--internal',
                 'vcstagger',
                 '@INPUT0@',

mesonbuild/msubprojects.py

@@ -586,7 +586,7 @@ def add_arguments(parser: argparse.ArgumentParser) -> None:
 
     p = subparsers.add_parser('update', help='Update all subprojects from wrap files')
     p.add_argument('--rebase', default=True, action='store_true',
-                   help='Rebase your branch on top of wrap\'s revision. ' + \
+                   help='Rebase your branch on top of wrap\'s revision. ' +
                         'Deprecated, it is now the default behaviour. (git only)')
     p.add_argument('--reset', default=False, action='store_true',
                    help='Checkout wrap\'s revision and hard reset to that commit. (git only)')