pgAdmin Funciton Code

The code displayed by pgAdmin, for a function I have created, does not
allow me to recreate the function as I would like. If I run :-

CREATE SCHEMA "Security"
AUTHORIZATION postgres;

CREATE TABLE "Security"."CentreGroupPolicy"
(
"CentreGroupPolicyID" bigint NOT NULL
)
WITHOUT OIDS;

CREATE OR REPLACE FUNCTION
"Security"."CentreGroupPolicyDetailsGet1"(INOUT "pCentreGroupPolicyID"
bigint) AS
$BODY$
BEGIN
SELECT INTO
"pCentreGroupPolicyID"
cgp."CentreGroupPolicyID"
FROM "Security"."CentreGroupPolicy" cgp
WHERE cgp."CentreGroupPolicyID" = "pCentreGroupPolicyID";
END;
$BODY$
LANGUAGE 'plpgsql' STABLE;

Then pgAdmin shows me:-

CREATE OR REPLACE FUNCTION
"Security"."CentreGroupPolicyDetailsGet1"(INOUT pCentreGroupPolicyID
bigint) AS
$BODY$
BEGIN
SELECT INTO
"pCentreGroupPolicyID"
cgp."CentreGroupPolicyID"
FROM "Security"."CentreGroupPolicy" cgp
WHERE cgp."CentreGroupPolicyID" = "pCentreGroupPolicyID";
END;
$BODY$
LANGUAGE 'plpgsql' STABLE;

Which does not run.

If instead I use:-

CREATE OR REPLACE FUNCTION
"Security"."CentreGroupPolicyDetailsGet1"(INOUT pCentreGroupPolicyID
bigint) AS
$BODY$
BEGIN
SELECT INTO
pCentreGroupPolicyID
cgp."CentreGroupPolicyID"
FROM "Security"."CentreGroupPolicy" cgp
WHERE cgp."CentreGroupPolicyID" = pCentreGroupPolicyID;
END;
$BODY$
LANGUAGE 'plpgsql' STABLE;

pgAdmin gives me:-

CREATE OR REPLACE FUNCTION
"Security"."CentreGroupPolicyDetailsGet1"(INOUT pcentregrouppolicyid
bigint) AS
$BODY$
BEGIN
SELECT INTO
pCentreGroupPolicyID
cgp."CentreGroupPolicyID"
FROM "Security"."CentreGroupPolicy" cgp
WHERE cgp."CentreGroupPolicyID" = pCentreGroupPolicyID;
END;
$BODY$
LANGUAGE 'plpgsql' STABLE;

and the case no longer matches for the parameter.

Is it possible to make it more consistent?