Make pgwin32_putenv() visit debug CRTs.

This has no effect in the most conventional case, where no relevant DLL
uses a debug build.  For an example where it does matter, given a debug
build of MIT Kerberos, the krb_server_keyfile parameter usually had no
effect.  Since nobody wants a Heisenbug, back-patch to 9.2 (all
supported versions).

Christian Ullrich, reviewed by Michael Paquier.

src/port/win32env.c

@@ -40,30 +40,57 @@ pgwin32_putenv(const char *envval)
 		{
 			"msvcrt", NULL, NULL
 		},						/* Visual Studio 6.0 / MinGW */
+		{
+			"msvcrtd", NULL, NULL
+		},
 		{
 			"msvcr70", NULL, NULL
 		},						/* Visual Studio 2002 */
+		{
+			"msvcr70d", NULL, NULL
+		},
 		{
 			"msvcr71", NULL, NULL
 		},						/* Visual Studio 2003 */
+		{
+			"msvcr71d", NULL, NULL
+		},
 		{
 			"msvcr80", NULL, NULL
 		},						/* Visual Studio 2005 */
+		{
+			"msvcr80d", NULL, NULL
+		},
 		{
 			"msvcr90", NULL, NULL
 		},						/* Visual Studio 2008 */
+		{
+			"msvcr90d", NULL, NULL
+		},
 		{
 			"msvcr100", NULL, NULL
 		},						/* Visual Studio 2010 */
+		{
+			"msvcr100d", NULL, NULL
+		},
 		{
 			"msvcr110", NULL, NULL
 		},						/* Visual Studio 2012 */
+		{
+			"msvcr110d", NULL, NULL
+		},
 		{
 			"msvcr120", NULL, NULL
 		},						/* Visual Studio 2013 */
+		{
+			"msvcr120d", NULL, NULL
+		},
 		{
 			"ucrtbase", NULL, NULL
 		},						/* Visual Studio 2015 and later */
+		{
+			"ucrtbased", NULL, NULL
+		},
 		{
 			NULL, NULL, NULL
 		}