Don't quote language name

Same as previous patch, but give it actual thought this time

contrib/isn/isn--1.0.sql

@@ -18,12 +18,12 @@
 CREATE FUNCTION ean13_in(cstring)
 	RETURNS ean13
 	AS 'MODULE_PATHNAME'
-	LANGUAGE 'C'
+	LANGUAGE C
 	IMMUTABLE STRICT;
 CREATE FUNCTION ean13_out(ean13)
 	RETURNS cstring
 	AS 'MODULE_PATHNAME'
-	LANGUAGE 'C'
+	LANGUAGE C
 	IMMUTABLE STRICT;
 CREATE TYPE ean13 (
 	INPUT = ean13_in,
@@ -36,12 +36,12 @@ COMMENT ON TYPE ean13
 CREATE FUNCTION isbn13_in(cstring)
 	RETURNS isbn13
 	AS 'MODULE_PATHNAME', 'isbn_in'
-	LANGUAGE 'C'
+	LANGUAGE C
 	IMMUTABLE STRICT;
 CREATE FUNCTION ean13_out(isbn13)
 	RETURNS cstring
 	AS 'MODULE_PATHNAME'
-	LANGUAGE 'C'
+	LANGUAGE C
 	IMMUTABLE STRICT;
 CREATE TYPE isbn13 (
 	INPUT = isbn13_in,
@@ -54,12 +54,12 @@ COMMENT ON TYPE isbn13
 CREATE FUNCTION ismn13_in(cstring)
 	RETURNS ismn13
 	AS 'MODULE_PATHNAME', 'ismn_in'
-	LANGUAGE 'C'
+	LANGUAGE C
 	IMMUTABLE STRICT;
 CREATE FUNCTION ean13_out(ismn13)
 	RETURNS cstring
 	AS 'MODULE_PATHNAME'
-	LANGUAGE 'C'
+	LANGUAGE C
 	IMMUTABLE STRICT;
 CREATE TYPE ismn13 (
 	INPUT = ismn13_in,
@@ -72,12 +72,12 @@ COMMENT ON TYPE ismn13
 CREATE FUNCTION issn13_in(cstring)
 	RETURNS issn13
 	AS 'MODULE_PATHNAME', 'issn_in'
-	LANGUAGE 'C'
+	LANGUAGE C
 	IMMUTABLE STRICT;
 CREATE FUNCTION ean13_out(issn13)
 	RETURNS cstring
 	AS 'MODULE_PATHNAME'
-	LANGUAGE 'C'
+	LANGUAGE C
 	IMMUTABLE STRICT;
 CREATE TYPE issn13 (
 	INPUT = issn13_in,
@@ -92,12 +92,12 @@ COMMENT ON TYPE issn13
 CREATE FUNCTION isbn_in(cstring)
 	RETURNS isbn
 	AS 'MODULE_PATHNAME'
-	LANGUAGE 'C'
+	LANGUAGE C
 	IMMUTABLE STRICT;
 CREATE FUNCTION isn_out(isbn)
 	RETURNS cstring
 	AS 'MODULE_PATHNAME'
-	LANGUAGE 'C'
+	LANGUAGE C
 	IMMUTABLE STRICT;
 CREATE TYPE isbn (
 	INPUT = isbn_in,
@@ -110,12 +110,12 @@ COMMENT ON TYPE isbn
 CREATE FUNCTION ismn_in(cstring)
 	RETURNS ismn
 	AS 'MODULE_PATHNAME'
-	LANGUAGE 'C'
+	LANGUAGE C
 	IMMUTABLE STRICT;
 CREATE FUNCTION isn_out(ismn)
 	RETURNS cstring
 	AS 'MODULE_PATHNAME'
-	LANGUAGE 'C'
+	LANGUAGE C
 	IMMUTABLE STRICT;
 CREATE TYPE ismn (
 	INPUT = ismn_in,
@@ -128,12 +128,12 @@ COMMENT ON TYPE ismn
 CREATE FUNCTION issn_in(cstring)
 	RETURNS issn
 	AS 'MODULE_PATHNAME'
-	LANGUAGE 'C'
+	LANGUAGE C
 	IMMUTABLE STRICT;
 CREATE FUNCTION isn_out(issn)
 	RETURNS cstring
 	AS 'MODULE_PATHNAME'
-	LANGUAGE 'C'
+	LANGUAGE C
 	IMMUTABLE STRICT;
 CREATE TYPE issn (
 	INPUT = issn_in,
@@ -146,12 +146,12 @@ COMMENT ON TYPE issn
 CREATE FUNCTION upc_in(cstring)
 	RETURNS upc
 	AS 'MODULE_PATHNAME'
-	LANGUAGE 'C'
+	LANGUAGE C
 	IMMUTABLE STRICT;
 CREATE FUNCTION isn_out(upc)
 	RETURNS cstring
 	AS 'MODULE_PATHNAME'
-	LANGUAGE 'C'
+	LANGUAGE C
 	IMMUTABLE STRICT;
 CREATE TYPE upc (
 	INPUT = upc_in,
@@ -3041,31 +3041,31 @@ ALTER OPERATOR FAMILY isn_ops USING hash ADD
 CREATE FUNCTION isbn13(ean13)
 RETURNS isbn13
 AS 'MODULE_PATHNAME', 'isbn_cast_from_ean13'
-LANGUAGE 'C' IMMUTABLE STRICT;
+LANGUAGE C IMMUTABLE STRICT;
 CREATE FUNCTION ismn13(ean13)
 RETURNS ismn13
 AS 'MODULE_PATHNAME', 'ismn_cast_from_ean13'
-LANGUAGE 'C' IMMUTABLE STRICT;
+LANGUAGE C IMMUTABLE STRICT;
 CREATE FUNCTION issn13(ean13)
 RETURNS issn13
 AS 'MODULE_PATHNAME', 'issn_cast_from_ean13'
-LANGUAGE 'C' IMMUTABLE STRICT;
+LANGUAGE C IMMUTABLE STRICT;
 CREATE FUNCTION isbn(ean13)
 RETURNS isbn
 AS 'MODULE_PATHNAME', 'isbn_cast_from_ean13'
-LANGUAGE 'C' IMMUTABLE STRICT;
+LANGUAGE C IMMUTABLE STRICT;
 CREATE FUNCTION ismn(ean13)
 RETURNS ismn
 AS 'MODULE_PATHNAME', 'ismn_cast_from_ean13'
-LANGUAGE 'C' IMMUTABLE STRICT;
+LANGUAGE C IMMUTABLE STRICT;
 CREATE FUNCTION issn(ean13)
 RETURNS issn
 AS 'MODULE_PATHNAME', 'issn_cast_from_ean13'
-LANGUAGE 'C' IMMUTABLE STRICT;
+LANGUAGE C IMMUTABLE STRICT;
 CREATE FUNCTION upc(ean13)
 RETURNS upc
 AS 'MODULE_PATHNAME', 'upc_cast_from_ean13'
-LANGUAGE 'C' IMMUTABLE STRICT;
+LANGUAGE C IMMUTABLE STRICT;
 
 
 CREATE CAST (ean13 AS isbn13) WITH FUNCTION isbn13(ean13);
@@ -3097,83 +3097,83 @@ CREATE CAST (issn13 AS issn) WITHOUT FUNCTION AS ASSIGNMENT;
 CREATE FUNCTION make_valid(ean13)
 	RETURNS ean13
 	AS 'MODULE_PATHNAME'
-	LANGUAGE 'C'
+	LANGUAGE C
 	IMMUTABLE STRICT;
 CREATE FUNCTION make_valid(isbn13)
 	RETURNS isbn13
 	AS 'MODULE_PATHNAME'
-	LANGUAGE 'C'
+	LANGUAGE C
 	IMMUTABLE STRICT;
 CREATE FUNCTION make_valid(ismn13)
 	RETURNS ismn13
 	AS 'MODULE_PATHNAME'
-	LANGUAGE 'C'
+	LANGUAGE C
 	IMMUTABLE STRICT;
 CREATE FUNCTION make_valid(issn13)
 	RETURNS issn13
 	AS 'MODULE_PATHNAME'
-	LANGUAGE 'C'
+	LANGUAGE C
 	IMMUTABLE STRICT;
 CREATE FUNCTION make_valid(isbn)
 	RETURNS isbn
 	AS 'MODULE_PATHNAME'
-	LANGUAGE 'C'
+	LANGUAGE C
 	IMMUTABLE STRICT;
 CREATE FUNCTION make_valid(ismn)
 	RETURNS ismn
 	AS 'MODULE_PATHNAME'
-	LANGUAGE 'C'
+	LANGUAGE C
 	IMMUTABLE STRICT;
 CREATE FUNCTION make_valid(issn)
 	RETURNS issn
 	AS 'MODULE_PATHNAME'
-	LANGUAGE 'C'
+	LANGUAGE C
 	IMMUTABLE STRICT;
 CREATE FUNCTION make_valid(upc)
 	RETURNS upc
 	AS 'MODULE_PATHNAME'
-	LANGUAGE 'C'
+	LANGUAGE C
 	IMMUTABLE STRICT;
 
 CREATE FUNCTION is_valid(ean13)
 	RETURNS boolean
 	AS 'MODULE_PATHNAME'
-	LANGUAGE 'C'
+	LANGUAGE C
 	IMMUTABLE STRICT;
 CREATE FUNCTION is_valid(isbn13)
 	RETURNS boolean
 	AS 'MODULE_PATHNAME'
-	LANGUAGE 'C'
+	LANGUAGE C
 	IMMUTABLE STRICT;
 CREATE FUNCTION is_valid(ismn13)
 	RETURNS boolean
 	AS 'MODULE_PATHNAME'
-	LANGUAGE 'C'
+	LANGUAGE C
 	IMMUTABLE STRICT;
 CREATE FUNCTION is_valid(issn13)
 	RETURNS boolean
 	AS 'MODULE_PATHNAME'
-	LANGUAGE 'C'
+	LANGUAGE C
 	IMMUTABLE STRICT;
 CREATE FUNCTION is_valid(isbn)
 	RETURNS boolean
 	AS 'MODULE_PATHNAME'
-	LANGUAGE 'C'
+	LANGUAGE C
 	IMMUTABLE STRICT;
 CREATE FUNCTION is_valid(ismn)
 	RETURNS boolean
 	AS 'MODULE_PATHNAME'
-	LANGUAGE 'C'
+	LANGUAGE C
 	IMMUTABLE STRICT;
 CREATE FUNCTION is_valid(issn)
 	RETURNS boolean
 	AS 'MODULE_PATHNAME'
-	LANGUAGE 'C'
+	LANGUAGE C
 	IMMUTABLE STRICT;
 CREATE FUNCTION is_valid(upc)
 	RETURNS boolean
 	AS 'MODULE_PATHNAME'
-	LANGUAGE 'C'
+	LANGUAGE C
 	IMMUTABLE STRICT;
 
 --
@@ -3183,7 +3183,7 @@ CREATE FUNCTION is_valid(upc)
 CREATE FUNCTION isn_weak(boolean)
 	RETURNS boolean
 	AS 'MODULE_PATHNAME', 'accept_weak_input'
-	LANGUAGE 'C'
+	LANGUAGE C
 	IMMUTABLE STRICT;
 
 --
@@ -3192,5 +3192,5 @@ CREATE FUNCTION isn_weak(boolean)
 CREATE FUNCTION isn_weak()
 	RETURNS boolean
 	AS 'MODULE_PATHNAME', 'weak_input_status'
-	LANGUAGE 'C'
+	LANGUAGE C
 	IMMUTABLE STRICT;

contrib/pgcrypto/pgcrypto--1.0.sql

@@ -61,7 +61,7 @@ LANGUAGE C IMMUTABLE STRICT;
 CREATE FUNCTION gen_random_bytes(int4)
 RETURNS bytea
 AS 'MODULE_PATHNAME', 'pg_random_bytes'
-LANGUAGE 'C' VOLATILE STRICT;
+LANGUAGE C VOLATILE STRICT;
 
 --
 -- pgp_sym_encrypt(data, key)