read-print: Properly indent ‘parameterize’.

Fixes <https://issues.guix.gnu.org/65427>.

* guix/read-print.scm (%special-forms): Add ‘parameterize’.
* tests/read-print.scm: Add test.

Reported-by: Maxime Devos <maximedevos@telenet.be>
Change-Id: I922bffc527ade539cf2eb304acb25bc9c705a459

guix/read-print.scm

@@ -330,6 +330,7 @@ expressions and blanks that were read."
    ('add-after '(((modify-phases) . 3)))
    ('add-before '(((modify-phases) . 3)))
    ('replace '(((modify-phases) . 2)))         ;different from 'modify-inputs'
+   ('parameterize 2)
    ('substitute* 2)
    ('substitute-keyword-arguments 2)
    ('call-with-input-file 2)

tests/read-print.scm

@@ -173,6 +173,11 @@ expressions."
    'odd)
   (else #f))")
 
+(test-pretty-print "\
+(parameterize ((a 1)
+               (b 2))
+  (call f g h))")
+
 (test-pretty-print "\
 #~(string-append #$coreutils \"/bin/uname\")")