checker profiles cannot be listed does not list the available profiles
**Describe the bug**
CodeChecker checkers --profile list 
does not list the available profiles. Returns with an empty list.

In earlier versions it returned this:
/6.11.1/CodeChecker/bin/CodeChecker checkers --profile list
 default
 sensitive
 security
 portability
 extreme




**CodeChecker version**
CodeChecker analyzer version:
---------------------------------------------------------------
Kind                 | Version
---------------------------------------------------------------
Base package version | 6.12.0
Package build date   | 2020-05-11T22:04
Git commit ID (hash) | 24c0414c8f5250ce81534d43d9cf64b9b07a430e
Git tag information  | 6.12
---------------------------------------------------------------

CodeChecker web version:
------------------------------------------------------------------------
Kind                          | Version
------------------------------------------------------------------------
Base package version          | 6.12.0
Package build date            | 2020-05-11T22:04
Git commit ID (hash)          | 24c0414c8f5250ce81534d43d9cf64b9b07a430e
Git tag information           | 6.12
Server supported API (Thrift) | 6.26
Client API (Thrift)           | 6.26


diff --git a/analyzer/codechecker_analyzer/cmd/checkers.py b/analyzer/codechecker_analyzer/cmd/checkers.py
index 50575eb3..82fe1863 100644
--- a/analyzer/codechecker_analyzer/cmd/checkers.py
+++ b/analyzer/codechecker_analyzer/cmd/checkers.py
@@ -209,7 +209,7 @@ def main(args):
             rows = context.available_profiles.items()
         else:
             header = ['Profile name']
-            rows = ([key] for key in context.available_profiles.keys())
+            rows = [(key, "") for key in context.available_profiles.keys()]
 
         if args.output_format in ['csv', 'json']:
             header = list(map(uglify, header))
diff --git a/analyzer/tests/functional/cmdline/test_cmdline.py b/analyzer/tests/functional/cmdline/test_cmdline.py
index 82f786ee..7baca598 100644
--- a/analyzer/tests/functional/cmdline/test_cmdline.py
+++ b/analyzer/tests/functional/cmdline/test_cmdline.py
@@ -88,6 +88,14 @@ class TestCmdline(unittest.TestCase):
         checkers_cmd = [env.codechecker_cmd(), 'checkers']
         self.assertEqual(0, run_cmd(checkers_cmd)[0])
 
+    def test_checkers_profile(self):
+        """ Listing available checker profiles. """
+
+        checkers_cmd = [env.codechecker_cmd(), 'checkers', '--profile', 'list']
+        out = run_cmd(checkers_cmd)
+        self.assertEqual(0, out[0])
+        self.assertEqual(True, "default" in out[1])
+
     def test_analyzers(self):
         """ Listing available analyzers. """
 
['analyzer/codechecker_analyzer/cmd/checkers.py', 'analyzer/tests/functional/cmdline/test_cmdline.py']