fix typo in get_exception(), extends fix #2502 (#2507)

introduced with 9e277aabb0

lib/ansible/modules/extras/system/cronvar.py

@@ -150,7 +150,7 @@ class CronVar(object):
                 self.lines = f.read().splitlines()
                 f.close()
             except IOError:
-                e = get_exception
+                e = get_exception()
                 # cron file does not exist
                 return
             except:
@@ -207,7 +207,7 @@ class CronVar(object):
             os.unlink(self.cron_file)
             return True
         except OSError:
-            e = get_exception
+            e = get_exception()
             # cron file does not exist
             return False
         except:

lib/ansible/modules/extras/system/crypttab.py

@@ -130,7 +130,7 @@ def main():
         crypttab = Crypttab(path)
         existing_line = crypttab.match(name)
     except Exception:
-        e = get_exception
+        e = get_exception()
         module.fail_json(msg="failed to open and parse crypttab file: %s" % e,
                          **module.params)
 

lib/ansible/modules/extras/system/getent.py

@@ -114,7 +114,7 @@ def main():
     try:
         rc, out, err = module.run_command(cmd)
     except Exception:
-        e = get_exception
+        e = get_exception()
         module.fail_json(msg=str(e))
 
     msg = "Unexpected failure!"

lib/ansible/modules/extras/system/gluster_volume.py

@@ -150,7 +150,7 @@ def run_gluster(gargs, **kwargs):
         if rc != 0:
             module.fail_json(msg='error running gluster (%s) command (rc=%d): %s' % (' '.join(args), rc, out or err))
     except Exception:
-        e = get_exception
+        e = get_exception()
         module.fail_json(msg='error running gluster (%s) command: %s' % (' '.join(args), str(e)))
     return out