utils: one minor fix in the comments

Signed-off-by: Iker Pedrosa <ipedrosa@redhat.com>

sssd_test_framework/utils/tools.py

@@ -153,7 +153,7 @@ def FromOutput(cls, stdout: str) -> IdEntry:
 
 class PasswdEntry(object):
     """
-    Result of ``getent group``
+    Result of ``getent passwd``
     """
 
     def __init__(self, name: str, password: str, uid: int, gid: int, gecos: str, home: str, shell: str) -> None: