Fix an incorrect macro

A macro was missing a space which was confusing find-doc-nits
Reviewed-by: NRichard Levitte <levitte@openssl.org>

(cherry picked from commit 8caab503ba004abb555d636c1ca9f7bcde79657f)
Reviewed-by: NTomas Mraz <tmraz@fedoraproject.org>
Reviewed-by: NMatthias St. Pierre <Matthias.St.Pierre@ncp-e.com>
(Merged from https://github.com/openssl/openssl/pull/10094)

include/openssl/ocsp.h

@@ -123,7 +123,7 @@ typedef struct ocsp_service_locator_st OCSP_SERVICELOC;
      (char *(*)())d2i_OCSP_REQUEST,PEM_STRING_OCSP_REQUEST, \
      bp,(char **)(x),cb,NULL)
 
-#  define PEM_read_bio_OCSP_RESPONSE(bp,x,cb)(OCSP_RESPONSE *)PEM_ASN1_read_bio(\
+#  define PEM_read_bio_OCSP_RESPONSE(bp,x,cb) (OCSP_RESPONSE *)PEM_ASN1_read_bio(\
      (char *(*)())d2i_OCSP_RESPONSE,PEM_STRING_OCSP_RESPONSE, \
      bp,(char **)(x),cb,NULL)