pg_alterckey: adjust doc build and Win32 sleep/open build fails

Fix for commit 62afb42a7f.

Reported-by: Tom Lane

Discussion: https://postgr.es/m/1252111.1608953815@sss.pgh.pa.us

Backpatch-through: master

doc/src/sgml/ref/allfiles.sgml

@@ -189,6 +189,7 @@ Complete list of usable sgml source files in this directory.
 <!ENTITY values             SYSTEM "values.sgml">
 
 <!-- applications and utilities -->
+<!ENTITY pgalterckey        SYSTEM "pg_alterckey.sgml">
 <!ENTITY clusterdb          SYSTEM "clusterdb.sgml">
 <!ENTITY createdb           SYSTEM "createdb.sgml">
 <!ENTITY createuser         SYSTEM "createuser.sgml">
@@ -215,7 +216,7 @@ Complete list of usable sgml source files in this directory.
 <!ENTITY pgtestfsync        SYSTEM "pgtestfsync.sgml">
 <!ENTITY pgtesttiming       SYSTEM "pgtesttiming.sgml">
 <!ENTITY pgupgrade          SYSTEM "pgupgrade.sgml">
-<!ENTITY pgwaldump         SYSTEM "pg_waldump.sgml">
+<!ENTITY pgwaldump          SYSTEM "pg_waldump.sgml">
 <!ENTITY postgres           SYSTEM "postgres-ref.sgml">
 <!ENTITY postmaster         SYSTEM "postmaster.sgml">
 <!ENTITY psqlRef            SYSTEM "psql-ref.sgml">

src/bin/pg_alterckey/pg_alterckey.c

@@ -343,16 +343,17 @@ create_lockfile(void)
  		unlink(pid_path);
 
  		/* Sleep to reduce the likelihood of concurrent unlink */
- 		sleep(2);
+		pg_usleep(2000000L);    /* 2 seconds */
 	}
 
 	/* Create our own lockfile? */
-	lock_fd = open(pid_path, O_RDWR | O_CREAT | O_EXCL
+#ifndef WIN32
-#ifdef WIN32
+	lock_fd = open(pid_path, O_RDWR | O_CREAT | O_EXCL, pg_file_create_mode);
-				   /* delete on close */
+#else
-				   | O_TEMPORARY
+	/* delete on close */
+	lock_fd = open(pid_path, O_RDWR | O_CREAT | O_EXCL | O_TEMPORARY,
+				   pg_file_create_mode);
 #endif
-				   , pg_file_create_mode);
 
 	if (lock_fd == -1)
 	{