Fix pylint errors

In a previous patch the dependency on cmd2 was changed from cmd2==1.5 to
cmd2>=1.5. After this was merged, this lead to the docker images getting
rebuilt and now having a higher cmd2 version that gets used in the CI
checks. So while the patch was in review, pylint was actually running
with a lower cmd2 version and was taking different code paths.

Fix for:
pySim-shell.py:30:4: E0611: No name 'fg' in module 'cmd2' (no-name-in-module)
pySim-shell.py:30:4: E0611: No name 'bg' in module 'cmd2' (no-name-in-module)
pySim-shell.py:154:8: E1123: Unexpected keyword argument 'use_ipython' in method call (unexpected-keyword-arg)
pySim-shell.py:171:30: E1120: No value for argument 'settable_object' in constructor call (no-value-for-parameter)
pySim-shell.py:173:30: E1120: No value for argument 'settable_object' in constructor call (no-value-for-parameter)
pySim-shell.py:175:30: E1120: No value for argument 'settable_object' in constructor call (no-value-for-parameter)
pySim-shell.py:176:30: E1120: No value for argument 'settable_object' in constructor call (no-value-for-parameter)

Fixes: f8a3d2b3 ("requirements.txt: allow cmd2 versions greater than 1.5")
Fixes: OS#6034
Change-Id: I182d3a2b87e70ed551a70c88d3d531a36bf53f53
diff --git a/pySim-shell.py b/pySim-shell.py
index 51cd9c6..2b8c0be 100755
--- a/pySim-shell.py
+++ b/pySim-shell.py
@@ -27,7 +27,7 @@
 from cmd2 import style
 # cmd2 >= 2.3.0 has deprecated the bg/fg in favor of Bg/Fg :(
 if version.parse(cmd2.__version__) < version.parse("2.3.0"):
-    from cmd2 import fg, bg
+    from cmd2 import fg, bg # pylint: disable=no-name-in-module
     RED = fg.red
     LIGHT_RED = fg.bright_red
     LIGHT_GREEN = fg.bright_green
@@ -151,6 +151,7 @@
         else:
             kwargs = {'include_ipy': True}
 
+        # pylint: disable=unexpected-keyword-arg
         super().__init__(persistent_history_file='~/.pysim_shell_history', allow_cli_args=False,
                          auto_load_commands=False, startup_script=script, **kwargs)
         self.intro = style('Welcome to pySim-shell!', fg=RED)
@@ -168,11 +169,15 @@
         self.apdu_trace = False
 
         if version.parse(cmd2.__version__) < version.parse("2.0.0"):
+            # pylint: disable=no-value-for-parameter
             self.add_settable(cmd2.Settable('numeric_path', bool, 'Print File IDs instead of names',
                                             onchange_cb=self._onchange_numeric_path))
+            # pylint: disable=no-value-for-parameter
             self.add_settable(cmd2.Settable('conserve_write', bool, 'Read and compare before write',
                                             onchange_cb=self._onchange_conserve_write))
+            # pylint: disable=no-value-for-parameter
             self.add_settable(cmd2.Settable('json_pretty_print', bool, 'Pretty-Print JSON output'))
+            # pylint: disable=no-value-for-parameter
             self.add_settable(cmd2.Settable('apdu_trace', bool, 'Trace and display APDUs exchanged with card',
                                             onchange_cb=self._onchange_apdu_trace))
         else: