doc: adjust known issues pattern
Changes to the nested unnamed unions in type definitions require a tweak
to the pattern matching used to detect known issues reported by the API
doc generation.
#
#
^(?P<filename>[-._/\w]+/api/hypercall_api.rst):(?P<lineno>[0-9]+): WARNING: Invalid definition: Expected identifier in nested name. \[error at [0-9]+]
-^.*union vhm_request::\@0 vhm_request::\@1
-^[- \t]*\^
-^(?P=filename):(?P=lineno): WARNING: Invalid definition: Expected identifier in nested name. \[error at [0-9]+]
-^.*union vhm_request::\@2 vhm_request::reqs
-^[- \t]*\^
-^(?P=filename):(?P=lineno): WARNING: Invalid definition: Expected identifier in nested name. \[error at [0-9]+]
-^.*union vhm_request_buffer::\@3 vhm_request_buffer::\@4
+^.*union vhm_request::\@0 vhm_request::reqs
^[- \t]*\^
^(?P=filename):(?P=lineno): WARNING: Invalid definition: Expected identifier in nested name. \[error at [0-9]+]
^[ \t]*
^.*vhm_request.reqs
^[- \t]*\^
^(?P=filename):(?P=lineno): WARNING: Invalid definition: Expected identifier in nested name. \[error at [0-9]+]
-^.*union hc_ptdev_irq::\@5 hc_ptdev_irq::is
+^.*union hc_ptdev_irq::\@1 hc_ptdev_irq::is
^[- \t]*\^
^(?P=filename):(?P=lineno): WARNING: Invalid definition: Expected identifier in nested name. \[error at [0-9]+]
^[ \t]*
