doc/man3: use the documented coding style in the example code

Adjust brace placement, whitespace after keywords, indentation and empty
lines after variable declarations according to
https://www.openssl.org/policies/codingstyle.html.

Indent literal sections by exactly one space.

Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/1956)

doc/man3/SCT_validate.pod

diff --git a/doc/man3/SCT_validate.pod b/doc/man3/SCT_validate.pod
index 5ff0e8c..fa7e2a8 100644
--- a/doc/man3/SCT_validate.pod
+++ b/doc/man3/SCT_validate.pod
@@ -10,12 +10,12 @@
  #include <openssl/ct.h>
 
  typedef enum {
-  SCT_VALIDATION_STATUS_NOT_SET,
-  SCT_VALIDATION_STATUS_UNKNOWN_LOG,
-  SCT_VALIDATION_STATUS_VALID,
-  SCT_VALIDATION_STATUS_INVALID,
-  SCT_VALIDATION_STATUS_UNVERIFIED,
-  SCT_VALIDATION_STATUS_UNKNOWN_VERSION
+     SCT_VALIDATION_STATUS_NOT_SET,
+     SCT_VALIDATION_STATUS_UNKNOWN_LOG,
+     SCT_VALIDATION_STATUS_VALID,
+     SCT_VALIDATION_STATUS_INVALID,
+     SCT_VALIDATION_STATUS_UNVERIFIED,
+     SCT_VALIDATION_STATUS_UNKNOWN_VERSION
  } sct_validation_status_t;
 
  int SCT_validate(SCT *sct, const CT_POLICY_EVAL_CTX *ctx);