Make capitalization of term "OpenSSL" more consistent

This includes code comments and documentation.  No backpatch as this is
cosmetic even if there are documentation changes which are user-facing.

Author: Daniel Gustafsson
Discussion: https://postgr.es/m/BB89928E-2BC7-489E-A5E4-6D204B3954CF@yesql.se

contrib/pgcrypto/openssl.c

@@ -408,7 +408,7 @@ gen_ossl_encrypt(PX_Cipher *c, const uint8 *data, unsigned dlen,
 /* Blowfish */
 
 /*
- * Check if strong crypto is supported. Some openssl installations
+ * Check if strong crypto is supported. Some OpenSSL installations
  * support only short keys and unfortunately BF_set_key does not return any
  * error value. This function tests if is possible to use strong key.
  */

doc/src/sgml/install-windows.sgml

@@ -293,11 +293,11 @@ $ENV{MSBFLAGS}="/m";
     </varlistentry>
 
     <varlistentry>
-     <term><productname>openssl</productname></term>
+     <term><productname>OpenSSL</productname></term>
      <listitem><para>
       Required for SSL support. Binaries can be downloaded from
       <ulink url="http://www.slproweb.com/products/Win32OpenSSL.html"></ulink>
-      or source from <ulink url="http://www.openssl.org"></ulink>.
+      or source from <ulink url="https://www.openssl.org"></ulink>.
      </para></listitem>
     </varlistentry>
 
@@ -348,7 +348,7 @@ $ENV{MSBFLAGS}="/m";
 
   <para>
    To use a server-side third party library such as <productname>python</productname> or
-   <productname>openssl</productname>, this library <emphasis>must</emphasis> also be
+   <productname>OpenSSL</productname>, this library <emphasis>must</emphasis> also be
    64-bit. There is no support for loading a 32-bit library in a 64-bit
    server. Several of the third party libraries that PostgreSQL supports may
    only be available in 32-bit versions, in which case they cannot be used with

doc/src/sgml/release-8.2.sgml

@@ -1705,7 +1705,7 @@
 
      <para>
       This is reportedly possible with some Windows versions of
-      <application>openssl</application>.
+      <application>OpenSSL</application>.
      </para>
     </listitem>
 

doc/src/sgml/release-8.3.sgml

@@ -3320,7 +3320,7 @@
 
      <para>
       This is reportedly possible with some Windows versions of
-      <application>openssl</application>.
+      <application>OpenSSL</application>.
      </para>
     </listitem>
 

doc/src/sgml/release-8.4.sgml

@@ -5661,7 +5661,7 @@
 
      <para>
       This is reportedly possible with some Windows versions of
-      <application>openssl</application>.
+      <application>OpenSSL</application>.
      </para>
     </listitem>
 

doc/src/sgml/release-9.2.sgml

@@ -808,7 +808,7 @@ UPDATE pg_database SET datallowconn = false WHERE datname = 'template0';
 
     <listitem>
      <para>
-      In MSVC builds, handle the case where the <application>openssl</application>
+      In MSVC builds, handle the case where the <application>OpenSSL</application>
       library is not within a <filename>VC</filename> subdirectory (Andrew Dunstan)
      </para>
     </listitem>

doc/src/sgml/release-9.3.sgml

@@ -1813,7 +1813,7 @@ UPDATE pg_database SET datallowconn = false WHERE datname = 'template0';
 
     <listitem>
      <para>
-      In MSVC builds, handle the case where the <application>openssl</application>
+      In MSVC builds, handle the case where the <application>OpenSSL</application>
       library is not within a <filename>VC</filename> subdirectory (Andrew Dunstan)
      </para>
     </listitem>

doc/src/sgml/release-9.4.sgml

@@ -2065,7 +2065,7 @@ Branch: REL9_4_STABLE [23a2b818f] 2017-08-05 14:56:40 -0700
 
     <listitem>
      <para>
-      In MSVC builds, handle the case where the <application>openssl</application>
+      In MSVC builds, handle the case where the <application>OpenSSL</application>
       library is not within a <filename>VC</filename> subdirectory (Andrew Dunstan)
      </para>
     </listitem>

doc/src/sgml/release-9.5.sgml

@@ -2283,7 +2283,7 @@ Branch: REL9_2_STABLE [1188b9b2c] 2017-08-02 15:07:21 -0400
 
     <listitem>
      <para>
-      In MSVC builds, handle the case where the <application>openssl</application>
+      In MSVC builds, handle the case where the <application>OpenSSL</application>
       library is not within a <filename>VC</filename> subdirectory (Andrew Dunstan)
      </para>
     </listitem>

doc/src/sgml/release-9.6.sgml

@@ -3308,7 +3308,7 @@ Branch: REL9_3_STABLE [da30fa603] 2017-06-05 20:40:47 -0400
 Branch: REL9_2_STABLE [f964a7c5a] 2017-06-05 20:41:01 -0400
 -->
      <para>
-      In MSVC builds, handle the case where the <application>openssl</application>
+      In MSVC builds, handle the case where the <application>OpenSSL</application>
       library is not within a <filename>VC</filename> subdirectory (Andrew Dunstan)
      </para>
     </listitem>

src/backend/libpq/be-secure-openssl.c

@@ -187,7 +187,7 @@ be_tls_init(bool isServerStart)
 	SSL_CTX_set_options(context, SSL_OP_NO_SSLv2 | SSL_OP_NO_SSLv3);
 
 	/* disallow SSL session tickets */
-#ifdef SSL_OP_NO_TICKET			/* added in openssl 0.9.8f */
+#ifdef SSL_OP_NO_TICKET			/* added in OpenSSL 0.9.8f */
 	SSL_CTX_set_options(context, SSL_OP_NO_TICKET);
 #endif
 
@@ -638,7 +638,7 @@ be_tls_write(Port *port, void *ptr, size_t len, int *waitfor)
  * Private substitute BIO: this does the sending and receiving using send() and
  * recv() instead. This is so that we can enable and disable interrupts
  * just while calling recv(). We cannot have interrupts occurring while
- * the bulk of openssl runs, because it uses malloc() and possibly other
+ * the bulk of OpenSSL runs, because it uses malloc() and possibly other
  * non-reentrant libc facilities. We also need to call send() and recv()
  * directly so it gets passed through the socket/signals layer on Win32.
  *
@@ -736,7 +736,7 @@ my_BIO_s_socket(void)
 	return my_bio_methods;
 }
 
-/* This should exactly match openssl's SSL_set_fd except for using my BIO */
+/* This should exactly match OpenSSL's SSL_set_fd except for using my BIO */
 static int
 my_SSL_set_fd(Port *port, int fd)
 {

src/interfaces/libpq/fe-secure-openssl.c

@@ -1588,7 +1588,7 @@ my_BIO_s_socket(void)
 	return my_bio_methods;
 }
 
-/* This should exactly match openssl's SSL_set_fd except for using my BIO */
+/* This should exactly match OpenSSL's SSL_set_fd except for using my BIO */
 static int
 my_SSL_set_fd(PGconn *conn, int fd)
 {

src/test/ssl/Makefile

@@ -32,7 +32,7 @@ SSLFILES := $(CERTIFICATES:%=ssl/%.key) $(CERTIFICATES:%=ssl/%.crt) \
 # This target generates all the key and certificate files.
 sslfiles: $(SSLFILES)
 
-# Openssl requires a directory to put all generated certificates in. We don't
+# OpenSSL requires a directory to put all generated certificates in. We don't
 # use this for anything, but we need a location.
 ssl/new_certs_dir:
 	mkdir ssl/new_certs_dir