Remove sentences in RETURN VALUES sections saying that functions with

void return types 'return no value'. This is obvious and therefore
unneccessary to mention.

We spare rewind(3)'s sentence because espie@ pointed out that it's a
warning - the function masks a potential error.

This commit also adds a sentence to X509_free clarifying that it's
NULL-safe. This bit was discussed with doug@.

ok martijn@, sentiment supported by schwarze@

1 files changed, 1 insertions, 2 deletions

diff --git a/src/lib/libcrypto/doc/X509_new.pod b/src/lib/libcrypto/doc/X509_new.pod
index d38872335f..a36808b825 100644
--- a/src/lib/libcrypto/doc/X509_new.pod
+++ b/src/lib/libcrypto/doc/X509_new.pod
@@ -19,6 +19,7 @@ X509 structure, which represents an X509 certificate.
 X509_new() allocates and initializes a X509 structure.
 
 X509_free() frees up the B<X509> structure B<a>.
+If B<a> is a B<NULL> pointer, no action occurs.
 
 =head1 RETURN VALUES
 
@@ -26,8 +27,6 @@ If the allocation fails, X509_new() returns B<NULL> and sets an error
 code that can be obtained by L<ERR_get_error(3)|ERR_get_error(3)>.
 Otherwise it returns a pointer to the newly allocated structure.
 
-X509_free() returns no value.
-
 =head1 SEE ALSO
 
 L<ERR_get_error(3)|ERR_get_error(3)>, L<d2i_X509(3)|d2i_X509(3)>