[cocci] Improving expression list selections with SmPL ellipses?

Hello,

Would you find the following SmPL script variant reasonable?

@display@
@@
*my_action("Hello!", ..., ...);


Unfortunately, I was disturbed by the following information.

Questionable test result (according to the software combination “Coccinelle 1.3.0”):
Markus_Elfring@Sonne:…/Projekte/Coccinelle/Probe> /usr/bin/spatch --parse-cocci parse_test_for_ellipsis_as_last_parameter.cocci
…
minus: parse error: 
  File "parse_test_for_ellipsis_as_last_parameter.cocci", line 3, column 26, charpos = 39
  around = '...',
  whole content = *my_action("Hello!", ..., ...);


Under which circumstances will such data processing work also without using
extra metavariables (instead of SmPL ellipses)?

Regards,
Markus