Clean up CREATE FUNCTION syntax usage in contrib and elsewhere, in

particular get rid of single quotes around language names and old WITH ()
construct.

contrib/tablefunc/tablefunc.sql.in

@@ -4,13 +4,13 @@ SET search_path = public;
 CREATE OR REPLACE FUNCTION normal_rand(int4, float8, float8)
 RETURNS setof float8
 AS 'MODULE_PATHNAME','normal_rand'
-LANGUAGE 'C' VOLATILE STRICT;
+LANGUAGE C VOLATILE STRICT;
 
 -- the generic crosstab function:
 CREATE OR REPLACE FUNCTION crosstab(text)
 RETURNS setof record
 AS 'MODULE_PATHNAME','crosstab'
-LANGUAGE 'C' STABLE STRICT;
+LANGUAGE C STABLE STRICT;
 
 -- examples of building custom type-specific crosstab functions:
 CREATE TYPE tablefunc_crosstab_2 AS
@@ -40,47 +40,47 @@ CREATE TYPE tablefunc_crosstab_4 AS
 CREATE OR REPLACE FUNCTION crosstab2(text)
 RETURNS setof tablefunc_crosstab_2
 AS 'MODULE_PATHNAME','crosstab'
-LANGUAGE 'C' STABLE STRICT;
+LANGUAGE C STABLE STRICT;
 
 CREATE OR REPLACE FUNCTION crosstab3(text)
 RETURNS setof tablefunc_crosstab_3
 AS 'MODULE_PATHNAME','crosstab'
-LANGUAGE 'C' STABLE STRICT;
+LANGUAGE C STABLE STRICT;
 
 CREATE OR REPLACE FUNCTION crosstab4(text)
 RETURNS setof tablefunc_crosstab_4
 AS 'MODULE_PATHNAME','crosstab'
-LANGUAGE 'C' STABLE STRICT;
+LANGUAGE C STABLE STRICT;
 
 -- obsolete:
 CREATE OR REPLACE FUNCTION crosstab(text,int)
 RETURNS setof record
 AS 'MODULE_PATHNAME','crosstab'
-LANGUAGE 'C' STABLE STRICT;
+LANGUAGE C STABLE STRICT;
 
 CREATE OR REPLACE FUNCTION crosstab(text,text)
 RETURNS setof record
 AS 'MODULE_PATHNAME','crosstab_hash'
-LANGUAGE 'C' STABLE STRICT;
+LANGUAGE C STABLE STRICT;
 
 CREATE OR REPLACE FUNCTION connectby(text,text,text,text,int,text)
 RETURNS setof record
 AS 'MODULE_PATHNAME','connectby_text'
-LANGUAGE 'C' STABLE STRICT;
+LANGUAGE C STABLE STRICT;
 
 CREATE OR REPLACE FUNCTION connectby(text,text,text,text,int)
 RETURNS setof record
 AS 'MODULE_PATHNAME','connectby_text'
-LANGUAGE 'C' STABLE STRICT;
+LANGUAGE C STABLE STRICT;
 
 -- These 2 take the name of a field to ORDER BY as 4th arg (for sorting siblings)
 
 CREATE OR REPLACE FUNCTION connectby(text,text,text,text,text,int,text)
 RETURNS setof record
 AS 'MODULE_PATHNAME','connectby_text_serial'
-LANGUAGE 'C' STABLE STRICT;
+LANGUAGE C STABLE STRICT;
 
 CREATE OR REPLACE FUNCTION connectby(text,text,text,text,text,int)
 RETURNS setof record
 AS 'MODULE_PATHNAME','connectby_text_serial'
-LANGUAGE 'C' STABLE STRICT;
+LANGUAGE C STABLE STRICT;