Fix: Set default values for kdump enhancement (#217)

* fixed default values issue in PR216

* changed path start with /

Author: muhammadalihussnain

scripts/hostcfgd

@@ -1140,8 +1140,8 @@ class KdumpCfg(object):
             "memory": "0M-2G:256M,2G-4G:320M,4G-8G:384M,8G-:448M",
             "num_dumps": "3",
             "remote": "false",            # New feature: remote, default is "false"
-            "ssh_string": "<user@server>",   # New feature: SSH key, default value
-            "ssh_path": "<path>"          # New feature: SSH path, default value
+            "ssh_string": "user@localhost",   # New feature: SSH key, default value
+            "ssh_path": "/a/b/c"          # New feature: SSH path, default value
         }
 
     def load(self, kdump_table):

tests/hostcfgd/hostcfgd_test.py

@@ -217,8 +217,8 @@ def test_kdump_event(self):
                 call(['sonic-kdump-config', '--num_dumps', '3']),
                 call(['sonic-kdump-config', '--memory', '0M-2G:256M,2G-4G:320M,4G-8G:384M,8G-:448M']),
                 call(['sonic-kdump-config', '--remote', 'false']),  # Covering remote
-                call(['sonic-kdump-config', '--ssh_string', '<user@server>']),  # Covering ssh_string
-                call(['sonic-kdump-config', '--ssh_path', '<path>'])  # Covering ssh_path
+                call(['sonic-kdump-config', '--ssh_string', 'user@localhost']),  # Covering ssh_string
+                call(['sonic-kdump-config', '--ssh_path', '/a/b/c'])  # Covering ssh_path
             ]
             mocked_subprocess.check_call.assert_has_calls(expected, any_order=True)