[FIX] The call of RaiseError.CommandExecutionError is corrected [message arg]

Author: dmitry-lipetsk

testgres/operations/remote_ops.py

@@ -193,7 +193,7 @@ def is_executable(self, file):
         RaiseError.CommandExecutionError(
             cmd=command,
             exit_code=exit_status,
-            msg_arg=errMsg,
+            message=errMsg,
             error=error,
             out=output
         )
@@ -305,7 +305,7 @@ def path_exists(self, path):
         RaiseError.CommandExecutionError(
             cmd=command,
             exit_code=exit_status,
-            msg_arg=errMsg,
+            message=errMsg,
             error=error,
             out=output
         )