Change TRUE/FALSE to true/false

The lower case spellings are C and C++ standard and are used in most
parts of the PostgreSQL sources.  The upper case spellings are only used
in some files/modules.  So standardize on the standard spellings.

The APIs for ICU, Perl, and Windows define their own TRUE and FALSE, so
those are left as is when using those APIs.

In code comments, we use the lower-case spelling for the C concepts and
keep the upper-case spelling for the SQL concepts.

Reviewed-by: Michael Paquier <michael.paquier@gmail.com>

1 files changed, 4 insertions, 4 deletions

diff --git a/src/backend/executor/nodeAppend.c b/src/backend/executor/nodeAppend.c
index bed9bb87138..1d2fb35d551 100644
--- a/src/backend/executor/nodeAppend.c
+++ b/src/backend/executor/nodeAppend.c
@@ -88,10 +88,10 @@ exec_append_initialize_next(AppendState *appendstate)
 		/*
 		 * if scanning in reverse, we start at the last scan in the list and
 		 * then proceed back to the first.. in any case we inform ExecAppend
-		 * that we are at the end of the line by returning FALSE
+		 * that we are at the end of the line by returning false
 		 */
 		appendstate->as_whichplan = 0;
-		return FALSE;
+		return false;
 	}
 	else if (whichplan >= appendstate->as_nplans)
 	{
@@ -99,11 +99,11 @@ exec_append_initialize_next(AppendState *appendstate)
 		 * as above, end the scan if we go beyond the last scan in our list..
 		 */
 		appendstate->as_whichplan = appendstate->as_nplans - 1;
-		return FALSE;
+		return false;
 	}
 	else
 	{
-		return TRUE;
+		return true;
 	}
 }