Update comment to fix nibble mention:

bmomjian · bmomjian · commit 00f184a83ffc · 2004-10-07T17:03:50.000Z
* We are not sure how much precision is in tv_usec, so we
	 * swap the high and low 16 bits of 'later' and XOR them with
	 * 'earlier'. On the off chance that the result is 0, we
	 * loop until it isn't.

Greg Stark
diff --git a/src/backend/postmaster/postmaster.c b/src/backend/postmaster/postmaster.c
@@ -37,7 +37,7 @@
  *
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/backend/postmaster/postmaster.c,v 1.427 2004/10/07 00:03:15 tgl Exp $
+ *	  $PostgreSQL: pgsql/src/backend/postmaster/postmaster.c,v 1.428 2004/10/07 17:03:50 momjian Exp $
  *
  * NOTES
  *
@@ -1194,7 +1194,7 @@ ServerLoop(void)
 
 				/*
 				 * We are not sure how much precision is in tv_usec, so we
-				 * swap the nibbles of 'later' and XOR them with
+				 * swap the high and low 16-bits of 'later' and XOR them with
 				 * 'earlier'. On the off chance that the result is 0, we
 				 * loop until it isn't.
 				 */

Original file line number	Diff line number	Diff line change
`@@ -37,7 +37,7 @@`
`37`	`37`	`*`
`38`	`38`	`*`
`39`	`39`	`* IDENTIFICATION`
`40`		`- * $PostgreSQL: pgsql/src/backend/postmaster/postmaster.c,v 1.427 2004/10/07 00:03:15 tgl Exp $`
	`40`	`+ * $PostgreSQL: pgsql/src/backend/postmaster/postmaster.c,v 1.428 2004/10/07 17:03:50 momjian Exp $`
`41`	`41`	`*`
`42`	`42`	`* NOTES`
`43`	`43`	`*`
`@@ -1194,7 +1194,7 @@ ServerLoop(void)`
`1194`	`1194`
`1195`	`1195`	`/*`
`1196`	`1196`	`* We are not sure how much precision is in tv_usec, so we`
`1197`		`- * swap the nibbles of 'later' and XOR them with`
	`1197`	`+ * swap the high and low 16-bits of 'later' and XOR them with`
`1198`	`1198`	`* 'earlier'. On the off chance that the result is 0, we`
`1199`	`1199`	`* loop until it isn't.`
`1200`	`1200`	`*/`