Drop 'perhaps a little', plus grammar and spelling nits

BIO_push() and BIO_pop() are misnamed. No need to gently and politely
suggest that their 'names [...] are perhaps a little misleading'.

Author: tb

src/lib/libcrypto/man/BIO_push.3

@@ -1,4 +1,4 @@
-.\"	$OpenBSD: BIO_push.3,v 1.7 2018/03/27 17:35:50 schwarze Exp $
+.\"	$OpenBSD: BIO_push.3,v 1.8 2022/12/02 22:58:56 tb Exp $
 .\"	OpenSSL doc/man3/BIO_push.pod 76ed5a42 Jun 29 13:38:55 2014 +0100
 .\"	OpenSSL doc/man7/bio.pod a9c85cea Nov 11 09:33:55 2016 +0100
 .\"
@@ -49,7 +49,7 @@
 .\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 .\" OF THE POSSIBILITY OF SUCH DAMAGE.
 .\"
-.Dd $Mdocdate: March 27 2018 $
+.Dd $Mdocdate: December 2 2022 $
 .Dt BIO_PUSH 3
 .Os
 .Sh NAME
@@ -69,7 +69,7 @@
 .Fc
 .Sh DESCRIPTION
 BIOs can be joined together to form chains.
-A chain normally consist of one or more filter BIOs
+A chain normally consists of one or more filter BIOs
 and one source/sink BIO at the end.
 Data read from or written to the first BIO traverses the chain
 to the end.
@@ -92,9 +92,9 @@ from a chain and returns the next BIO in the chain, or
 if there is no next BIO.
 The removed BIO then becomes a single BIO with no association with the
 original chain.
-it can thus be freed or attached to a different chain.
+It can thus be freed or attached to a different chain.
 .Pp
-The names of these functions are perhaps a little misleading.
+The names of these functions are misleading.
 .Fn BIO_push
 joins two BIO chains whereas
 .Fn BIO_pop